@book{3755,
	author = {Hagen, Gretchen L},
	title = {An Atlas of open cluster colour-magnitude diagrams},
	publisher = {David Dunlop Observatory},
	year = {1970},
	series = {Publications of the David Dunlop Observatory, University of Toronto; v. 4},
	address = {Toronto},
	note = {Complimentary gift}
}