@mastersthesis {36366,
	title = {DDE and eggshell thickness in Alberta common terns},
	volume = {Food Science},
	year = {1989},
	address = {University of Alberta},
	keywords = {Aves, common terns},
	url = {http://search.proquest.com/docview/89111722},
	author = {Switzer, Bruce Corneille}
}
