Pough, R. H. (1956). Audubon water bird guide: Water, game and large land birds : eastern and central North America, from southern Texas to central Greenland. Garden City, N.Y.
Chicago-Zitierstil (17. Ausg.)Pough, Richard Hooper. Audubon Water Bird Guide: Water, Game and Large Land Birds : Eastern and Central North America, from Southern Texas to Central Greenland. Doubleday: Garden City, N.Y, 1956.
MLA-Zitierstil (9. Ausg.)Pough, Richard Hooper. Audubon Water Bird Guide: Water, Game and Large Land Birds : Eastern and Central North America, from Southern Texas to Central Greenland. Garden City, N.Y, 1956.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.