APA (7th ed.) Citation

Field, A., Miles, J., & Field, Z. (2012). Discovering statistics using R. SAGE.

Chicago Style (17th ed.) Citation

Field, Andy, Jeremy Miles, and Zoe Field. Discovering Statistics Using R. London [etc.]: SAGE, 2012.

MLA (8th ed.) Citation

Field, Andy, et al. Discovering Statistics Using R. SAGE, 2012.