000 00340nam a2200145Ia 4500
008 240723s9999 xx 000 0 und d
041 _aEnglish
084 _aB
_bN7
245 0 _aText book of trigonometry
250 _a7th
260 _aDelhi
_bStudents friends, patna
_c1996
300 _ap.691
650 _aMathematics
942 _cBK
999 _c324916
_d324916