000 00246nam a22001217a 4500
003 OSt
100 _aGoyal, M K
245 _aParyavarniye Shikshha
250 _a 4th ed.
260 _aAgra
_bAgarwal Pub.
_c2013
300 _a326p.
942 _2ddc
_cBK
999 _c4044
_d4044