Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

Fry, William E. Principles of Plant Disease Management. New York [etc.]: Academic Press, 1982.

Cita MLA (9a ed.)

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