000 00316nam a2200145Ia 4500
008 190201s9999 xx 000 0 und d
082 _a658
082 _b4034 S
100 _a"Sharma, J. K"
245 0 _aMathematical Models in O
260 _aNew delhi
260 _bT.M.H
260 _c1989
300 _aXV- 620
999 _c31134
_d31134