APA Style
Engelkirk, G, R, W, B, P, G. (1999).
Microbiology for the Health Sciences (6th Edition).
Philadelphia, PA, USA:
Lippincott Williams & Wilkins.
MLA Style
Engelkirk, Gwendolyn, R., W., Burton,, Paul, G..
"Microbiology for the Health Sciences".
6th Edition
Philadelphia, PA, USA:
Lippincott Williams & Wilkins,
1999.
Text.