000 00332nam a22001337a 4500
003 OSt
020 _a9383963126
100 _aAkhand Pratap Singh
245 _aPramukh jeev vaigyanik aur unke avishkar
260 _aNew Delhi
_bPrashant Book Distributors
_c2016
300 _aviii, 152p.; 22cms
901 _aH2116
942 _2ddc
_cHB
999 _c40972
_d40972