Autor:	Williams, Laidlaw, Dearing, H., Dearing, M., Anderson, A. H., Anderson, Anne, Rett, E. Z., Broadbooks, Harold E., Ross, Roland Case, Weston,, Henry G., Jones, Victor E., Grant, Chapman, Jewett, Stanley G., Wood, Dale T., Sholes,, William H.
Zdroj:	The Condor, 1946 May 01. 48(3), 139-143.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/1364466 Zobrazit plný text záznamu