Instructional technology :
Instructional technology : foundations /
edited by Robert M. Gagné.
- Hillsdale, N.J. : L. Erlbaum Associates, 1987.
- viii, 473 p. :
0898596262 0898598788 (pbk.)
LB1028.3 / .I565 1987
0898596262 0898598788 (pbk.)
LB1028.3 / .I565 1987