000			00405nam a2200157Ia 4500
008			140317s9999 xx 000 0 und d
082			_a526.88
100			_aSloane,R.C.
245			_aElement of topographic drawing.2nd ed.
260			_aN.Y. _bMcGraw-Hill _c1943
300			_a251
650			_aAstronomy , Allied Sci.
653			_aAstronomy , Allied Science.
700			_aMontz,J.M.
942			_2ddc _cBK
999			_c830 _d830