00378nam a2200145Ia 4500003000400000005001700004008004100021040000700062041000800069082001900077100002300096245005800119260004300177365001200220OSt20230511151908.0210423s1990    xx            000 0 und d  cAL  aeng  a370 223bSERS  aSERVEY (Richard ).  aSocial studies instruction in the elementary  school.  aKottaymbOxford University Pressc1990  b12cINR