000 00372nam a2200145Ia 4500
008 140317s9999 xx 000 0 und d
082 _a526.9
100 _aLondon,HMSO
245 _aTextbook of Topographical surveying.
260 _aLondon
_bHMSO
_c1965
300 _a388
650 _aAstronomy , Allied Sci.
653 _aAstronomy , Allied Science.
942 _2ddc
_cBK
999 _c4457
_d4457