Gaya APA

Spencer, J, F, T., Spencer, A, L, R, D. (2004). Environmental Microbiology: Methods and Protocols . New Jersey: Humana Press Inc..

Gaya MLA

Spencer, John, F., T.., Spencer, Alicia, L., Ragout, De. "Environmental Microbiology: Methods and Protocols". New Jersey: Humana Press Inc., 2004. e-book.