Cita APA

Allen, A. A. (1968). book of bird life (2nd ed.). D. Van Nostrand Company. Inc.

Citación estilo Chicago

Allen, Arthur A. Book of Bird Life. 2nd ed. New Jersey: D. Van Nostrand Company. Inc, 1968.

Cita MLA

Allen, Arthur A. Book of Bird Life. 2nd ed. D. Van Nostrand Company. Inc, 1968.