author = { Sovada, Marsha A. AND King, D. Tommy AND Gray, Cheryl },

title = { Historic and Current Status of the American White Pelican Breeding at Chase Lake National Wildlife Refuge, North Dakota },

publisher = {Waterbird Society},

isbn = {1524-4695},

isbn = {1938-5390},

year = {2005},

url = { http://slubdd.de/katalog?TN_libero_mab2 }