Cita APA

Wright, A. H. 1., & Wright, A. A. 1. (1957). Handbook of snakes of the United States and Canada. Ithaca, New York: Comstock Publishing Associates.

Citación estilo Chicago

Wright, Albert Hazen 1879-1970, y Anna Allen 1882-1964 Wright. Handbook of Snakes of the United States and Canada. Ithaca, New York: Comstock Publishing Associates, 1957.

Cita MLA

Wright, Albert Hazen 1879-1970, y Anna Allen 1882-1964 Wright. Handbook of Snakes of the United States and Canada. Ithaca, New York: Comstock Publishing Associates, 1957.