000 00301nam a2200121Ia 4500
008 191206s9999 xx 000 0 und d
090 _aQA533.A45
245 0 _aPlane trigonometry
260 _aMcGraw-Hill
260 _cc1936
300 _a"xii, 152 p. : ill. ; 21 cm."
999 _c16689
_d16689