@book{34770,
	author = {Witmer, Helen Leland. and Gershenson, Charles Penn,},
	title = {On rearing infants and young children in institutions.},
	publisher = {U.S. Children's Bureau,},
	year = {1967 [i.e. 1968]},
	series = {Children's Bureau. Research reports no. 1},
	address = {[Washington]}
}