000 00421nam a2200133Ia 4500
008 210828s9999 xx 000 0 und d
082 _aB S3
100 _a"Suresh, G "
245 0 _aStudy on Quasi Class Q Operators
260 _aCoimbatore
260 _b PSG College of Arts and Science
260 _c2017
942 _cBK
999 _c139519
_d139519