000 00306nam a2200145Ia 4500
008 220421s9999||||xx |||||||||||||| ||und||
020 _c90
040 _aET
100 _aPATHAK P. D.
245 0 _aSHIKSHA MANOVIGYAN
260 _bAGRAWAL PUB.
_aAGRA
300 _a255
500 _a67575
942 _cBK
999 _c73538
_d73538