Jones, A. L., & Aldwinckle, H. S. (1990). Compendium of apple and pear diseases. APS.
Citación estilo ChicagoJones, A. L., and H. S. Aldwinckle. Compendium of Apple and Pear Diseases. Saint Paul: APS, 1990.
Cita MLAJones, A. L., and H. S. Aldwinckle. Compendium of Apple and Pear Diseases. APS, 1990.
Warning: These citations may not always be 100% accurate.