00473nam a22001337a 4500008004100000040005500041080001100096100001700107245010000124246004400224260004800268300001000316650001300326230706b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  a5/6 N6  aMitra, Veda   aविज्ञान कै झरोखे सै तुम्हारी दुनिया  aVigyan kai jharokhe sai tumhari duniya   aNew Delhi: bVidya Parkashan Mandir, c1996  a56p.   aScience