Levy, J. (1973). Introductory microbiology. John Wiley.
Cita Chicago (17th ed.)Levy, Julia. Introductory Microbiology. New York: John Wiley, 1973.
Cita MLA (9th ed.)Levy, Julia. Introductory Microbiology. John Wiley, 1973.
Atenció: Aquestes cites poden no estar 100% correctes.