Dyfyniad APA

McGuffin, W., & Pielou, D. (1972). Guide to Geometriadae of Canada (lepidoptera): Subfamily ennominae. The Entomological Society of Canada.

Dyfyniad Arddull Chicago

McGuffin, W.C, and D.P Pielou. Guide to Geometriadae of Canada (lepidoptera): Subfamily Ennominae. Ottawa: The Entomological Society of Canada, 1972.

Dyfyniad MLA

McGuffin, W.C, and D.P Pielou. Guide to Geometriadae of Canada (lepidoptera): Subfamily Ennominae. The Entomological Society of Canada, 1972.

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