Dyfyniad APA

Watkins,G M. (1981). Compendium of cotton diseases. The American phytopathological society.

Dyfyniad Arddull Chicago

Watkins,G M. Compendium of Cotton Diseases. The American phytopathological society, 1981.

Dyfyniad MLA

Watkins,G M. Compendium of Cotton Diseases. The American phytopathological society, 1981.

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