Saettler, L. Paul.
A history of instructional technology.
- New York, McGraw-Hill [1967, c1968]
- xv, 399 p. illus., ports. 23 cm.
Bibliography: p. [371]-384.
Education--Philosophy.
Teaching--Aids and devices.
Audio-visual education.
LB885 / .S15
371.3028 SAE