Cita APA (7th ed.)

Frey, K. J. (1981). Plant breeding II. Iowa State University Press.

Cita Chicago (17th ed.)

Frey, Kenneth J. Plant Breeding II. Ames, Iowa: Iowa State University Press, 1981.

Cita MLA (9th ed.)

Frey, Kenneth J. Plant Breeding II. Iowa State University Press, 1981.