TY - JOUR AU - TI - Four-Year-Olds' Understanding of Pretend, Forget, and Know: Evidence for Propositional Operations JF - Child Development DO - 10.1111/j.1467-8624.1976.tb03393.x DA - 1976-03-01 UR - https://www.deepdyve.com/lp/crossref/four-year-olds-understanding-of-pretend-forget-and-know-evidence-for-A0xlLVkCXI SP - 62 EP - 70 VL - 47 IS - 1 DP - DeepDyve ER -