Cita APA (7th ed.)

Fry, W. E. (1982). Principles of plant disease management.: Willam E. Fry. Academic Press.

Cita Chicago (17th ed.)

Fry, William E. Principles of Plant Disease Management.: Willam E. Fry. San, Diego: Academic Press, 1982.

Cita MLA (9th ed.)

Fry, William E. Principles of Plant Disease Management.: Willam E. Fry. Academic Press, 1982.