TY - JOUR TI - Do six-month-old infants perceive causality? N1 - Lecture 3; Physical World U1 - Essential JF - Cognition AU - Leslie, Alan M. AU - Keeble, Stephanie PY - 1987-4 EP - 288 SP - 265 SN - 00100277 IS - 3 VL - 25 ER -