000 00298nam a2200121Ia 4500
008 221117b |||||||| |||| 00| 0 eng d
040 _aBGL
_cBGL
082 _a516.24 ABB;T
100 _aAbbott, P
245 0 _aTeach yourself Trigonometry
260 _aLondon
_bEnglish Toughton
_c1975
942 _cGB
999 _c17335
_d17335