APA (7th ed.) Citation

Wittich, W. A., & Schuller, C. F. (1973). Instructional technology: Its nature and use (5. ed.). Harper & Row.

Chicago Style (17th ed.) Citation

Wittich, Walter A., and Charles F. Schuller. Instructional Technology: Its Nature and Use. 5. ed. New York, NY [u.a.]: Harper & Row, 1973.

MLA (9th ed.) Citation

Wittich, Walter A., and Charles F. Schuller. Instructional Technology: Its Nature and Use. 5. ed. Harper & Row, 1973.