Cita APA

Rutter, R. J. (1968). The world of the wolf. Philadelphia: J.B.Lippincott Company.

Citación estilo Chicago

Rutter, Russell J. The World of the Wolf. Philadelphia: J.B.Lippincott Company, 1968.

Cita MLA

Rutter, Russell J. The World of the Wolf. Philadelphia: J.B.Lippincott Company, 1968.