Instructional technology : its nature and use /
Wittich, Walter A.
Instructional technology : its nature and use / Walter A. Wittich, Charles F. Schuller. - 6th ed. - New York : Harper & Row, 1979. - 331 p. : ill. ; 24 cm.
Includes bibliographical references and index.
0060471697
78-12812
Audio-visual education.
Instructional technology : its nature and use / Walter A. Wittich, Charles F. Schuller. - 6th ed. - New York : Harper & Row, 1979. - 331 p. : ill. ; 24 cm.
Includes bibliographical references and index.
0060471697
78-12812
Audio-visual education.
