000			00389nam a2200145Ia 4500
003			NIELib
008			211019s9999||||xx |||||||||||||| ||und||
082			_a372.357 _bHAM
100			_aHammond, C.B. _924717
245			_aThe World of Science
260			_bPearl (India) publishing house, _aNew Delhi:
300			_a56p.; _bcol.ill.; _c24 cm.
650			_aPrimary Education
942			_2ddc _cLM
999			_c82597 _d82597