Population Trends, Productivity, and Harvest of Eastern Population Tundra Swans

Autor:	Serie, Jerome R., Luszcz, Dennis, Raftovich, Robert V.
Zdroj:	Waterbirds: The International Journal of Waterbird Biology, 2002 Jan 01. 25, 32-36.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/1522331 Zobrazit plný text záznamu