Autor:	Engels, William L., McIntyre, Raymond W., Gunter, Gordon, Ulmer,, Frederick A., Halloran, Arthur F., Trapido, Harold, Kezer, James, Green, Morton, Foote, Leonard E., Lewis, John B., Rysgaard, G. N., Terres, J. Kenneth, Hubbard, Douglass H., Gerberg, Eugene J., Goble, Frans C., Allen, Durward L., Cook, Arthur H.
Zdroj:	Journal of Mammalogy, 1941 Nov 01. 22(4), 447-456.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/1374941 Zobrazit plný text záznamu