000 00274nam a2200121Ia 4500
008 200906s9999 xx 000 0 und d
082 _a514 D955
100 _aDURELL,C.V
245 0 _aADVANCED TRIGONOMETRY
260 _bBELL, LONDON
_c1956
300 _a21X12
942 _cBK
999 _c60785
_d60785