000 00264 a2200121 4500
080 _a526.9
_bF 523 S
245 1 _aSurveying
_cby F. Firebrace
250 _a6th edn.
260 _aRoorkee
_c1892
650 _aSurveying
100 1 _aFirebrace, F.
_d
901 _a15234
999 _c25625
_d25625