| Understanding Our Earth - Glaciers |
1977 |
C/O Simon & Schuster Film & Videos |
11 min |
16mm |
|
sound |
| Understanding Our Earth - Rocks And Minerals |
1977 |
C/O Simon & Schuster Film & Videos |
12 min |
16mm |
|
sound |
| Understanding Our Earth - Soil |
1977 |
C/O Simon & Schuster Film & Videos |
406 |
16mm |
B&W |
sound |
| Understanding our Earth : Rocks and Minerals |
1957 |
Coronet |
11 min |
16mm |
color |
sound |
| Understanding Our Earth: How Its Surface Changes. |
1956 |
Coronet Instructional Films |
10 min. |
16mm |
B&W |
sound |
| Understanding Our Earth: Soil |
1953 |
Coronet |
11 min |
16mm |
|
sound |