Alexander, P. (1991). Commonwealth of wings: An ornithological biography based on the life of John James Audubon. University Press of New England.
Citace podle Chicago (17th ed.)Alexander, Pamela. Commonwealth of Wings: An Ornithological Biography Based on the Life of John James Audubon. Hanover, N.H.: University Press of New England, 1991.
Citace podle MLA (9th ed.)Alexander, Pamela. Commonwealth of Wings: An Ornithological Biography Based on the Life of John James Audubon. University Press of New England, 1991.
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