Παραπομπή APA

Lesgold, A. M. (1978). Cognitive psychology and instruction. Plenum Press.

Παραπομπή Chicago Style

Lesgold, Alan M. Cognitive Psychology and Instruction. New York: Plenum Press, 1978.

Παραπομπή MLA

Lesgold, Alan M. Cognitive Psychology and Instruction. Plenum Press, 1978.