Cita APA

Peterson, R. T. (1973). A field guide to mexican birds: Field marks of all species found in México, Guatemala, Belize (British Honduras), El Salvador. Boston: Houghton Mifflin Company.

Citación estilo Chicago

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

Cita MLA

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