APA (7th ed.) Citation

Todd, W. E. C., & Sutton, G. M. (1940). Birds of western Pennsylvania. University of Pittsburg Press.

Chicago Style (17th ed.) Citation

Todd, W. E. Clyde, and George Miksch Sutton. Birds of Western Pennsylvania. [Pittsburg]: University of Pittsburg Press, 1940.

MLA (9th ed.) Citation

Todd, W. E. Clyde, and George Miksch Sutton. Birds of Western Pennsylvania. University of Pittsburg Press, 1940.