Gaya APA

Tortora, G, J., Funke, B, R. (1994). Microbiology an Introduction (5). California: The Benjamin/Cummings Publishing Company.

Gaya MLA

Tortora, Gerard, J.., Funke, Berdell, R.. "Microbiology an Introduction". 5 California: The Benjamin/Cummings Publishing Company, 1994. Text.