000 00319nam a2200145Ia 4500
008 220421s9999||||xx |||||||||||||| ||und||
020 _c120
040 _aET
100 _aS.K. MANGAL
245 0 _aD.Ed SHIKSHA MANOVIGYAN
260 _bARYA BOOK DEPOT
_aNEW DELHI
300 _a260
500 _a67400
942 _cBK
999 _c73363
_d73363