Cita APA (7th ed.)

Crowder, N. A. (1967). Introduction to genetics. Doubleday and Co.

Cita Chicago (17th ed.)

Crowder, Norman A. Introduction to Genetics. New York: Doubleday and Co, 1967.

Cita MLA (9th ed.)

Crowder, Norman A. Introduction to Genetics. Doubleday and Co, 1967.