APA Style

Brooks, Geo F., Butel, Janed S.. (2002). Medical Microbiology, 20e (20th). : McGraw-Hill.

Chicago Style

Brooks, Geo F., Butel, Janed S.. Medical Microbiology, 20e. 20th : McGraw-Hill, 2002. Text.

MLA Style

Brooks, Geo F., Butel, Janed S.. Medical Microbiology, 20e. 20th : McGraw-Hill, 2002. Text.

Turabian Style

Brooks, Geo F., Butel, Janed S.. Medical Microbiology, 20e. 20th : McGraw-Hill, 2002. Print.