000 00300nam a2200121Ia 4500
100 _a Ilg, Frances L, Ames, Louise B & Baker Sindey M
020 _a0-06-463547-3
942 _cBK
245 _aChild behavior
260 _aHarper & Row, New York
_c1982
082 _a136.73 Ilg
300 _aviii,360p
999 _c11857
_d11857