000 00259nam a2200097 4500
245 _aVaigyanik : parichay-kosh
_cRakesh Sharma
100 _aSharma, Rakesh
260 _aDelhi
_bPrem Prakashan Mandir
_c1993
300 _a175p.: ill. 22cm.
082 _aH
_b509.2 SHA
999 _c67218
_d67218