Gattegno, Caleb. Towards a visual culture educating through television. - [New York] Outerbridge & Dienstfrey; distributed by Dutton [1969] - x, 117 p. illus. 23 cm. LCCN: 76091461 Subjects--Topical Terms: Television in education LC Class. No.: LB1044.7 / .G34 1969 Dewey Class. No.: 371.33/58