Cita APA

Peterson, R. T. (1962). A field guide to the birds. U.S.A: Houghton Mifflin Company Boston.

Chicago Style Citation

Peterson, Roger Tory. A Field Guide to the Birds. U.S.A: Houghton Mifflin Company Boston, 1962.

Cita MLA

Peterson, Roger Tory. A Field Guide to the Birds. U.S.A: Houghton Mifflin Company Boston, 1962.