The tool users. Produced by National Geographic Society. Sales distribution: NGS, Washington, D.C. 20036. Rental distribution: Audio‐Visual Services, Pennsylvania State University, University Park, Pa. 16802. 16mm, color, sound, 14 minutes. Sales price $180. Rental fee $10 Lori A. Baldwin, Geza Teleki • 1976
Experiments On Ape Intelligence 1914–1917. Produced By Wolfgang Köhler. Sales Distribution: Institut Für Den Wissenschaftlichen Film, D‐3400 Göttingen, Nonnenstieg 72, Germany. Rental Distribution: Audio‐Visual Services, Pennsylvania State University, University Park, Pa. 16802. 16mm, B&W, Silent, 9 Minutes. Rental Fee $7. Sales Price 227 Dm Lori A. Baldwin, Geza Teleki • 1976