Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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