Microbiology : an introduction.

MLA

Tortora, Gerard J., Christine L Case, and Berdell Funke. Microbiology : an Introduction. 9th ed. San Francisco: Pearson, 2007.

APA

Tortora, G. J., Case, C. L., & Funke, B. (2007). Microbiology : an introduction. 9th ed. San Francisco: Pearson.

Chicago

Tortora, Gerard J., Christine L. Case, and Berdell Funke. Microbiology: An Introduction. 9th ed. San Francisco: Pearson, 2007.