Herrick, F. H. (1968). Audubon the naturalist: A history of his life and time. New York: Dover.
Παραπομπή Chicago StyleHerrick, Francis Hobart. Audubon the Naturalist: A History of His Life and Time. New York: Dover, 1968.
Παραπομπή MLAHerrick, Francis Hobart. Audubon the Naturalist: A History of His Life and Time. New York: Dover, 1968.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.