Cita APA (7th ed.)

Copeland, L. O., & McDonald, M. B. (2001). Principles of seed science and technology (4a. ed.). Kluwer Academic.

Cita Chicago (17th ed.)

Copeland, Larry O., i Miller B. McDonald. Principles of Seed Science and Technology. 4a. ed. Boston: Kluwer Academic, 2001.

Cita MLA (9th ed.)

Copeland, Larry O., i Miller B. McDonald. Principles of Seed Science and Technology. 4a. ed. Kluwer Academic, 2001.