@article {27868,
	title = {A preliminary report on the effects of certain chlorinated hydrocarbons on shell thickness and reproductive success in common terns of Alberta},
	volume = {Unpublished report AFW-69-031},
	year = {1969},
	pages = {8},
	institution = {University of Alberta},
	author = {Switzer, B. and Lewin, V. and Wolfe, F.}
}
