APA Edition Citation

Wittich, W. A., Folkes. Ed, & John Guy. (1973). Instructional technology its nature and use (5th ed.). Harper & Row.

Chicago Edition Citation

Wittich, Walter A., Folkes. Ed, and John Guy. Instructional Technology Its Nature and Use. 5th ed. Harper & Row, 1973.

MLA Edition Citation

Wittich, Walter A., et al. Instructional Technology Its Nature and Use. 5th ed. Harper & Row, 1973.