00401nam a2200157Ia 4500003000600000005001700006008004100023020002500064022000600089040002500095082001600120100002100136245004900157260001800206500001900224NORSU20240702061810.0240215s9999    xx            000 0 und d  a0-13-170013-8 (pbk.)  a   aNORSU-DumcNORSU-Dum  a305.233 B38  a Janice J. Beaty 0aObserving development of the young child/6th  bMerrillc2006  aIncludes Index