@book{125767,
	author = {Minnesota Symposium on Child Psychology and Collins, W. Andrew, and University of Minnesota.},
	title = {Development of cognition, affect, and social relations /},
	publisher = {L. Erlbaum Associates,},
	year = {1980.},
	series = {The Minnesota symposia on child psychology ;},
	address = {Hillsdale, N.J. :}
}