000 00345nam a2200109Ia 4500
008 230817s9999 xx 000 0 und d
100 _aSteven Butler
245 0 _aNotes from Trigonometry
650 _aEngineering and Mathematics
856 _uhttps://new.zodml.org/sites/default/files/2023-07/epdf.pub_notes-from-trigonometry.pdf
942 _cEBK
999 _c34856
_d34856