Peterson, R. T., DiGiorgio, M., Lehman, P. E., Pyle, P., & Rosche, L. (2020). Peterson field guide to birds of North America (Second edition.). Houghton Mifflin Harcourt.
Cita Chicago Style (17a ed.)Peterson, Roger Tory, Michael DiGiorgio, Paul E. Lehman, Peter Pyle, y Larry Rosche. Peterson Field Guide to Birds of North America. Second edition. Boston: Houghton Mifflin Harcourt, 2020.
Cita MLA (8a ed.)Peterson, Roger Tory, et al. Peterson Field Guide to Birds of North America. Second edition. Houghton Mifflin Harcourt, 2020.
Precaución: Estas citas no son 100% exactas.