Deismireacht APA

Mahaffee Walter F, Pethybridge Sarah J, & Gent David H. (2009). Compendium of hop diseases and pests. American Phytopathological Society.

Chicago Edition Citation

Mahaffee Walter F, Pethybridge Sarah J, and Gent David H. Compendium of Hop Diseases and Pests. USA: American Phytopathological Society, 2009.

Deismireacht MLA

Mahaffee Walter F, et al. Compendium of Hop Diseases and Pests. American Phytopathological Society, 2009.

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