APA (7th ed.) Citation

Rupp, E., Sweetman, K., & Perry, D. (2010). Updating Circulation Policy for the 21st Century.

Chicago Style (17th ed.) Citation

Rupp, Eric, Kimberly Sweetman, and David Perry. Updating Circulation Policy for the 21st Century. 2010.

MLA (9th ed.) Citation

Rupp, Eric, et al. Updating Circulation Policy for the 21st Century. 2010.