Ricklefs, R. E. (2011). Applying a regional community concept to forest birds of eastern North America. National Academy of Sciences.
Chicago Style aipamenaRicklefs, Robert E. Applying a Regional Community Concept to Forest Birds of Eastern North America. National Academy of Sciences, 2011.
MLA aipamenaRicklefs, Robert E. Applying a Regional Community Concept to Forest Birds of Eastern North America. National Academy of Sciences, 2011.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.