Cita APA (7a ed.)

Varnam, A. H., & Evans, M. G. (2000). Environmental microbiology. ASM Press.

Cita Chicago Style (17a ed.)

Varnam, Alan H., y M. G. Evans. Environmental Microbiology. Washington, D.C.: ASM Press, 2000.

Cita MLA (9a ed.)

Varnam, Alan H., y M. G. Evans. Environmental Microbiology. ASM Press, 2000.