Autor:	Antevs, Ada, Bailey, Alfred M., Gullion, Gordon W., Stresemann, Erwin, Cottam, Clarence, Kenyon, Karl W., Hall, Edward M., Herman, Carlton M., Rosen, Merton N., Richardson, Frank, Evenden,, Fred G., Dumas, Philip C., Gordon, Kenneth L., Jaeger, Edmund C., Wiggins, Ira L.
Zdroj:	The Condor, 1947 Sep 01. 49(5), 209-213.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/1364343 Zobrazit plný text záznamu