APA (7th ed.) Citation

Peterson, R. T. (1939). The Junior book of birds. Houghton Mifflin.

Chicago Style (17th ed.) Citation

Peterson, Roger T. The Junior Book of Birds. Boston: Houghton Mifflin, 1939.

MLA (9th ed.) Citation

Peterson, Roger T. The Junior Book of Birds. Houghton Mifflin, 1939.