TY  - BOOK
AU  - Knirk, Frederick G. and Gustafson, Kent L.
TI  - Instructional technology: : a systematic approach to education
SN  - 0030716497
U1  - 600 
PY  - 1986///
CY  - New York
PB  - ; Holt Rinehart And Winston
KW  - Technology
ER  -