Cita APA (7a ed.)

Jones, A. L., & Aldwinckle, H. S. (1990). Compendium of apple and pear diseases. APS.

Cita Chicago Style (17a ed.)

Jones, A. L., y H. S. Aldwinckle. Compendium of Apple and Pear Diseases. St. Paul: APS, 1990.

Cita MLA (8a ed.)

Jones, A. L., y H. S. Aldwinckle. Compendium of Apple and Pear Diseases. APS, 1990.