00363nam a2200121Ia 4500008004100000040002500041082001400066100004000080245005900120250001800179260003300197300001100230230627s9999    xx            000 0 und d  aNORSU-SiacNORSU-Sia  a155.4 C63  aCohen, Dorothy H. and Nancy Alanan  0aObserving and recording the behavior of young children  aThird Edition  bTeachers College Pressc1983  a213 p.