000 00572nam a2200169Ia 4500
008 131223s9999 xx 000 0 und d
040 _aISI KOLKATA
041 _aEnglish
082 _a371.26
_bRb-68-50
100 _aRothenberg B B
245 _aConservation of number in very young children
_ba replication of and comparison with Mehler and Bever's study
260 _aNew Jersey
_bETS
_c1968
440 _aEducational Testing Service. Princeton : Research bulletin; 50
650 _aEducational tests and measurements
700 _aCountney R G
_4Auth.
942 _cBK
999 _c92479
_d92479