Não informado. (1964). Ornithological monographs. American Ornithologists' Union.
Chicago-viite (17. p.)Não informado. Ornithological Monographs. Washington: American Ornithologists' Union, 1964.
MLA-viite (8. p.)Não informado. Ornithological Monographs. American Ornithologists' Union, 1964.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.