APA (7th ed.) Citation

Peebles, L. W., & Spencer, J. O., Jr. (2020). Common ravens. U.S. Department of Agriculture, Animal & Plant Health Inspection Service, Wildlife Services.

Chicago Style (17th ed.) Citation

Peebles, Luke W., and Jack O. Spencer, Jr. Common Ravens. Fort Collins, Colorado: U.S. Department of Agriculture, Animal & Plant Health Inspection Service, Wildlife Services, 2020.

MLA (9th ed.) Citation

Peebles, Luke W., and Jack O. Spencer, Jr. Common Ravens. U.S. Department of Agriculture, Animal & Plant Health Inspection Service, Wildlife Services, 2020.