title: Social development in infancy: a 25-year perspective.
authors.affiliation: Department of Psychology, University of Illinois, Champaign-Urbana 61820.
authors.forename: R D
authors.initials: RD
authors.lastname: Parke
mesh_terms: D002657:Child Development; D006801:Humans; D007223:Infant; D007398:Interpersonal Relations; D011582:Psychological Theory; D002666:Psychology, Child; D012107:Research Design; D012919:Social Behavior