APA (7th ed.) Citation

Woolls, B., Dowlin, K., & Loertscher, D. (2002). Distance Education: Changing Formats.

Chicago Style (17th ed.) Citation

Woolls, Blanche, Ken Dowlin, and David Loertscher. Distance Education: Changing Formats. 2002.

MLA (9th ed.) Citation

Woolls, Blanche, et al. Distance Education: Changing Formats. 2002.