Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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