MLA

Brock, Thomas Dale, et al. Brock Biology of Microorganisms. 12th ed. San Fransisco (Calif.): Pearson/Benjamin Cummings, 2009.

APA

Brock, T. Dale, Dunlap, P. V, Madigan, M. T., & Martinko, J. M. (2009). Brock biology of microorganisms. 12th ed. San Fransisco (Calif.): Pearson/Benjamin Cummings.

Chicago

Brock, Thomas Dale, Paul V Dunlap, Michael T. Madigan, and John M. Martinko. Brock Biology of Microorganisms. 12th ed. San Fransisco (Calif.): Pearson/Benjamin Cummings, 2009.