| 1979 |
A Desert's Living Sand |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
| 1979 |
A Tidal Flat And Its Ecosystem |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
| 1979 |
Gold, Pt 1 |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
| 1979 |
Gold, Pt 2 |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
| 1979 |
Our Dynamic Earth |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
| 1979 |
The Two Worlds Of Hong Kong |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
| 1979 |
Tidal Flat And Its Ecosystem |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
| 1980 |
A Forest In The Clouds |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
| 1980 |
Dive to the Edge of Creation |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
| 1980 |
Mysteries Of The Mind |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
| 1980 |
Portrait Of A Coal Miner |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
| 1980 |
Portrait of a Wheat Farmer |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
| 1980 |
The Sun - Earth's Star |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
| 1980 |
The Superliners - Twilight Of An Era |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
| 1981 |
About Sharks |
Natl Geographic Society / Educational Services |
432 |
16mm |
|
sound |
| 1981 |
Dinosaurs - Puzzles From The Past |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
| 1981 |
National Parks, Promise And Challenge |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
| 1981 |
Nuclear Energy - The Question Before Us |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
| 1981 |
Portrait Of A Fisherman |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
| 1981 |
World Within Worlds |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
| 1982 |
On The Nose |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
| 1982 |
Preserving Egypt's Past |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
| 1982 |
Reflecting On The Moon |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
| 1982 |
Saving The Gorilla |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
| 1982 |
What Energy Means |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
| 1983 |
Pollination |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
| 1983 |
The Great Lakes States |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
| 1983 |
The Heartland |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
| 1983 |
The Mountain States |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
| 1983 |
The Pacific Coast States |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
| 1983 |
The Southwest |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
| 1983 |
The Upper South |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
| 1983 |
Weather - Come Rain, Come Shine |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
| 1984 |
Flight Of The Whooping Crane |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
| 1984 |
Protecting Endangered Animals |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
| 1984 |
Return To Everest |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
| 1984 |
Riches From The Sea |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
|
Voyage Of The Brigantine Yankee, The, Pt 1 |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |
|
Voyage Of The Brigantine Yankee, The, Pt 2 |
Natl Geographic Society / Educational Services |
|
16mm |
|
sound |