APA (7th ed.) Citation

Allen, M. W., & Allen, M. W. (2012). Michael Allen's e-learning annual: 2012 (1st edition.). Pfeiffer.

Chicago Style (17th ed.) Citation

Allen, M. W., and Michael W. Allen. Michael Allen's E-learning Annual: 2012. 1st edition. San Francisco: Pfeiffer, 2012.

MLA (9th ed.) Citation

Allen, M. W., and Michael W. Allen. Michael Allen's E-learning Annual: 2012. 1st edition. Pfeiffer, 2012.