Cita APA

Peterson, R. T. (1962). A field guide to birds: Giving field marks of all species found east of the Rockies. Boston: Hougton Mifflin Company Boston.

Citación estilo Chicago

Peterson, Roger Tory. A Field Guide to Birds: Giving Field Marks of All Species Found East of the Rockies. Boston: Hougton Mifflin Company Boston, 1962.

Cita MLA

Peterson, Roger Tory. A Field Guide to Birds: Giving Field Marks of All Species Found East of the Rockies. Boston: Hougton Mifflin Company Boston, 1962.