Cita APA (7a ed.)

Beehler, B. M., Robbins, C. S., Ringler, R. F., & Evans, M. (2019). Birds of Maryland, Delaware, and the District of Columbia. Johns Hopkins University Press.

Cita Chicago Style (17a ed.)

Beehler, Bruce McP, Chandler S. Robbins, Robert F. Ringler, y Middleton Evans. Birds of Maryland, Delaware, and the District of Columbia. Baltimore: Johns Hopkins University Press, 2019.

Cita MLA (8a ed.)

Beehler, Bruce McP, et al. Birds of Maryland, Delaware, and the District of Columbia. Johns Hopkins University Press, 2019.