Wittich, Walter Arno 1910-
Instructional technology : its nature and use / Walter A. Wittich and Charles F. Schuller. - 5th ed. - New York : Harper & Row 1973. - xxvi, 737 p. : illus. ; 24 cm. - Exploration series in education ; .
Includes bibliographical references and Index.
0060471727
72080129
Educational technology.
371.335 / WII
Instructional technology : its nature and use / Walter A. Wittich and Charles F. Schuller. - 5th ed. - New York : Harper & Row 1973. - xxvi, 737 p. : illus. ; 24 cm. - Exploration series in education ; .
Includes bibliographical references and Index.
0060471727
72080129
Educational technology.
371.335 / WII