Wittich, Walter Arno, 4 0 1910-
Instructional technology, its nature and use / 6 6 Walter A. Wittich, Charles F. Schuller. - 6th ed. - - xx, 331 p. : ill. 24 cm. - - - - - . - . - 0 . - . - 0 .
Includes bibliographies and index.
5
5
60471697
2 = =
78012812
2
2 --0------
6 --0-- 2 --------
0 2 --
--20------
Audio-visual education. --------20--
--------20--
----2
LB1043 / .W58 19792
371.33 / 2
/
/
Instructional technology, its nature and use / 6 6 Walter A. Wittich, Charles F. Schuller. - 6th ed. - - xx, 331 p. : ill. 24 cm. - - - - - . - . - 0 . - . - 0 .
Includes bibliographies and index.
5
5
60471697
2 = =
78012812
2
2 --0------
6 --0-- 2 --------
0 2 --
--20------
Audio-visual education. --------20--
--------20--
----2
LB1043 / .W58 19792
371.33 / 2
/
/