Cita APA

Van Tyne, J., & Berger, A. J. (1971). Fundamentals of ornithology. New York: Dover.

Citación estilo Chicago

Van Tyne, Josselyn, y Andrew J. Berger. Fundamentals of Ornithology. New York: Dover, 1971.

Cita MLA

Van Tyne, Josselyn, y Andrew J. Berger. Fundamentals of Ornithology. New York: Dover, 1971.