000 00378nam a2200181Ia 4500
008 240530s9999 xx 000 0 und d
082 _a510
082 _bLEN
100 _aLENEY S L
245 0 _aPLANE TRIGONOMETRY I
250 _n0
250 _n1996
300 _a327
365 _b30
650 _aMATHEMATICS
942 _cREF
950 _CSCIENCE AND HUMANITIES
999 _c191891
_d191891