Dyfyniad APA

Smiley Richard W, Dernoeden Peter H, & Clarke Bruce B. (2007). Compendium of turfgrass diseases (3rd ed.). American Phytopathological Society.

Dyfyniad Arddull Chicago

Smiley Richard W, Dernoeden Peter H, and Clarke Bruce B. Compendium of Turfgrass Diseases. 3rd ed. USA: American Phytopathological Society, 2007.

Dyfyniad MLA

Smiley Richard W, et al. Compendium of Turfgrass Diseases. 3rd ed. American Phytopathological Society, 2007.

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