Cita APA (7a ed.)

Denisen, E. L. (1958). Principles of horticulture. Macmillan.

Cita Chicago Style (17a ed.)

Denisen, Ervin L. Principles of Horticulture. New York: Macmillan, 1958.

Cita MLA (8a ed.)

Denisen, Ervin L. Principles of Horticulture. Macmillan, 1958.