000 00272pam a2200109a 44500
082 _a514.6
_bT374E
100 _aThompson, James E.
245 1 _aELEMENTS OF SPHERICAL TRIGONOMETRY
260 _a
_bD. Van Nostrand Company, Inc.
_c1942
964 _gCIRC
997 _a8979 C
999 _c408999
_d408999