APA Style

Seels, B, B., Richhey, R, C. (c1994). Instructional technology : the definition and domains of the field . Washington, DC: Association for Educational Communications and Technology.

MLA Style

Seels, Barbara, B.., Richhey, Rita, C.. "Instructional technology : the definition and domains of the field". Washington, DC: Association for Educational Communications and Technology, c1994. Text.