000 00270nam a2200109Ia 4500
008 230912s9999 xx 000 0 und d
100 _aSingh Sunita
245 2 _aA Textbook Of Polymer Science And Technology
260 _aDELHI
260 _bDHANPAT RAI
260 _c2011
999 _c86160
_d86160