000 00582cam a22001931 4500
001 6564975
005 20241118161821.0
008 760928s1962 maua 000 0 eng
050 0 0 _aQA531
_b.W32
082 _a514
100 1 _aWelchons, A. M.
_q(Alvie M.),
_d1894-1952.
245 1 0 _aModern trigonometry
_c[by] A. M. Welchons, W. R. Krickenberger, and Helen R. Pearson.
260 _aBoston,
_bGinn and Company
_c[1962]
300 _a327, 81 p.
_billus.
_c24 cm.
650 0 _aTrigonometry.
700 _aKrickenberger, W. R.
700 _aPearson, Helen R.
942 _2lcc
_cBK
_n0
999 _c1297
_d1297