Gaya APA

Seels, B, B., Richey, R, C. (1994). Instructional technology: the definition and domains of the field . Washington DC: Association for Educational Communications and Technology.

Gaya MLA

Seels, Barbara, B.., Richey, Rita, C.. "Instructional technology: the definition and domains of the field". Washington DC: Association for Educational Communications and Technology, 1994. Text.