Cita APA (7a ed.)

Snell, J. (1991). Quality control: Principles and practice in the microbiology laboratory. Public Health Laboratory Service.

Cita Chicago Style (17a ed.)

Snell, J.J.S. Quality Control: Principles and Practice in the Microbiology Laboratory. London: Public Health Laboratory Service, 1991.

Cita MLA (9a ed.)

Snell, J.J.S. Quality Control: Principles and Practice in the Microbiology Laboratory. Public Health Laboratory Service, 1991.