Cita APA (7th ed.)

Norton, C. F. (1981). Microbiology. Addison-Wesley.

Cita Chicago (17th ed.)

Norton, Cynthia Friend. Microbiology. Reading, Mass: Addison-Wesley, 1981.

Cita MLA (9th ed.)

Norton, Cynthia Friend. Microbiology. Addison-Wesley, 1981.