Cita APA (7th ed.)

Allen, O. E. (1978). Pruning and grafting. Time-Life Intl.

Cita Chicago (17th ed.)

Allen, Oliver E. Pruning and Grafting. Alexandria, Virginia: Time-Life Intl, 1978.

Cita MLA (9th ed.)

Allen, Oliver E. Pruning and Grafting. Time-Life Intl, 1978.