APA (7th ed.) Citation

MacGuffin, W. C. (1990). Guide to the Geometridae of Canada (Lepidoptera).

Chicago Style (17th ed.) Citation

MacGuffin, W. C. Guide to the Geometridae of Canada (Lepidoptera). Ottawa, 1990.

MLA (9th ed.) Citation

MacGuffin, W. C. Guide to the Geometridae of Canada (Lepidoptera). 1990.

Warning: These citations may not always be 100% accurate.