APA (7th ed.) Citation

Peterson, R. T., & Chalif, E. L. (1973). A field guide to Mexican birds: Field marks of all species found in Mexico, Guatemala, Belize (British Honduras), El Salvador. Houghton Mifflin.

Chicago Style (17th ed.) Citation

Peterson, Roger Tory, and Edward L. Chalif. A Field Guide to Mexican Birds: Field Marks of All Species Found in Mexico, Guatemala, Belize (British Honduras), El Salvador. Boston: Houghton Mifflin, 1973.

MLA (9th ed.) Citation

Peterson, Roger Tory, and Edward L. Chalif. A Field Guide to Mexican Birds: Field Marks of All Species Found in Mexico, Guatemala, Belize (British Honduras), El Salvador. Houghton Mifflin, 1973.