| What is ecology? |
1961 |
Encyclopaedia Britannica Educational Corporation: Distributor | Indiana University Audio-Visual Center: Distributor |
0:11:15 |
16mm |
Color |
sound |
| The Work of the Heart |
1967 |
Encyclopaedia Britannica Educ Corp |
19 |
16mm |
Color |
|
| The Skin - Its Structure And Function |
1983 |
ENCYCLOPEDIA BRITANNICA EDUCATIONAL CORP 425 N MICHIGAN AVE CHICAGO IL 60611 |
|
16mm |
|
sound |
| The Ears and hearing |
1969 |
ENCYCLOPEDIA BRITANNICA EDUC. (FILM |
22 |
16mm |
|
|
| Skeleton, The |
1979 |
Encyclopedia Britannica Educ. Corp |
|
16mm |
|
sound |