Dyfyniad APA

David H Thurston. (1989). Tropical plant diseases. Minnesota: American Phytopathological Society Press.

Dyfyniad Arddull Chicago

David H Thurston. Tropical Plant Diseases. Minnesota: American Phytopathological Society Press, 1989.

Dyfyniad MLA

David H Thurston. Tropical Plant Diseases. Minnesota: American Phytopathological Society Press, 1989.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.