000 00248nam a2200109Ia 4500
008 230401s9999 xx 000 0 eng d
100 _aPUNMIA(BC)
245 0 _aTHEORY OF STRUCTURE
250 _a3
260 _bLAXMI PUBLICATION
942 _2ddc
_cBTECH
999 _c4616
_d4616