000 00515nam a2200205Ia 4500
008 140520s9999||||xx |||||||||||||| ||und||
082 _a372.3504
082 _bVai
100 _aVaidya, Narendera
245 _aHow Children Discover Knowledge : Theoretical And Practical Foundations Of Student Investigations In Science
260 _aNew Delhi
260 _bOxford & Ibh
260 _c1974
300 _a315315
300 _bpb
300 _c5.5x8.5
350 _a0
365 _b9.9
365 _dRuppes
999 _c58319
_d58319