APA (7th ed.) Citation

Willis, B. D. (1994). Distance education: Strategies and tools. Educational Technology Publications.

Chicago Style (17th ed.) Citation

Willis, Barry Donald. Distance Education: Strategies and Tools. Englewood Cliffs, N.J: Educational Technology Publications, 1994.

MLA (9th ed.) Citation

Willis, Barry Donald. Distance Education: Strategies and Tools. Educational Technology Publications, 1994.