The Oceans--a key to our future.
The Oceans--a key to our future. [Filmstrip] /
Knowledge Aid.
- Niles, Ill. : United Learning, 1977.
- 5 rolls : col. ; 35 mm. & 5 cassettes (1/4-track. mono. ca. 47 min.) and teacher's guide.
Sound accompaniment compatible for manual and automatic operation.
The oceans: past, present, and future. 50 fr.--The oceans: a storehouse of food. 52 fr.--The oceans: a storehouse of raw material. 39 fr.--The oceans: a storehouse of power. 38 fr.--Changing the oceans. 48 fr.
Oceanography.
Oceanography.
GC21
551.4
Sound accompaniment compatible for manual and automatic operation.
The oceans: past, present, and future. 50 fr.--The oceans: a storehouse of food. 52 fr.--The oceans: a storehouse of raw material. 39 fr.--The oceans: a storehouse of power. 38 fr.--Changing the oceans. 48 fr.
Oceanography.
Oceanography.
GC21
551.4