000 00561 a2200265 4500
001 6568
020 _a2
041 _aeng
080 _a514 Ele
245 _aElements of trigonometry : plane and spherical with applications / Lyman M. Kells...[et al.]
250 _a
260 _aNew York
260 _bMcGraw-Hill Book,
260 _c1943
300 _ax,363 p.
300 _c23 cm
490 _a
100 _a
700 _a
650 _a
650 _aTrigonometry, Plane
650 _aTrigonometry, Spherical
942 _cBK
942 _2UDC
999 _c8095
_d8095