APA (7th ed.) Citation

Bolte, K. B., & McGuffin, W. C. (1990). Guide to the Geometridae of Canada (Lepidoptera): Subfamily Larentiinae, 1. Revision of the genus Eupithecia. Entomological Society of Canada.

Chicago Style (17th ed.) Citation

Bolte, K. B., and W. C. McGuffin. Guide to the Geometridae of Canada (Lepidoptera): Subfamily Larentiinae, 1. Revision of the Genus Eupithecia. Ottawa: Entomological Society of Canada, 1990.

MLA (9th ed.) Citation

Bolte, K. B., and W. C. McGuffin. Guide to the Geometridae of Canada (Lepidoptera): Subfamily Larentiinae, 1. Revision of the Genus Eupithecia. Entomological Society of Canada, 1990.