00866cam a2200265 4500 1715960 BD-DhUL 20160612153155.0 730321s1973 nyua b 001 0 engd 72080129 0060471727 DLC DLC DLC BD-DhUL 371.335 WII Wittich, Walter Arno 1910- Instructional technology : Walter A. Wittich and Charles F. Schuller. its nature and use / 5th ed. New York : Harper & Row 1973. xxvi, 737 p. : illus. ; 24 cm. Exploration series in education ; Includes bibliographical references and Index. Educational technology. Schuller, Charles Francis joint author. 7 cbc orignew 2 opcn 19 y-gencatlg ddc BK 78076 78076 0 0 ddc 0 371_335000000000000_WII 0 NFIC 131884 DUL DUL GEN 2016-06-12 Purchased 371.335 WII 468391(D) 2016-06-12 1 2016-06-12 BK