@book{44088,
	author = {Sheldon, William Herbert and Hartl, Emil M.},
	title = {Varieties of delinquent youth},
	publisher = {Hafner Pub. Co.},
	year = {1970 [c1949]},
	series = {His Human constitution series, 3-4},
	address = {Darien, Conn.},
	note = {Originally published as v. 3 of the series.}
}