APA

Heritage J., Evans E. G. V. & Killington R. A. (1996). Introductory Microbiology. Cambridge: Cambridge University Press.

Chicago

Heritage J, Evans E G V and Killington R A. 1996. Introductory Microbiology. Cambridge: Cambridge University Press.

Harvard

Heritage J., Evans E. G. V. and Killington R. A. (1996). Introductory Microbiology. Cambridge: Cambridge University Press.

MLA

Heritage J, Evans E G V and Killington R A. Introductory Microbiology. Cambridge: Cambridge University Press. 1996.