APA
Forsyth A., . (20061999). Mammals of North America. Richmond Hill, Ont: Firefly Books.
Chicago
Forsyth Adrian, . 20061999. Mammals of North America. Richmond Hill, Ont: Firefly Books.
Harvard
Forsyth A., . (20061999). Mammals of North America. Richmond Hill, Ont: Firefly Books.
MLA
Forsyth Adrian, . Mammals of North America. Richmond Hill, Ont: Firefly Books. 20061999.