TY - BOOK T1 - A study of operant conditioning under delayed reinforcement in early infancy T2 - Monographs of the Society for Research in Child Development A1 - Millar, W. Stuart PP - Chicago, Ill PB - Published by the University of Chicago Press for the Society for Research in Child Development YR - 1972 UL - https://tuklas.up.edu.ph/Record/UP-1685594773861340873 OP - 44 CN - LB 1103 S63 v.37 no.2 1972 KW - Infant psychology. KW - Operant conditioning. ER -