000 00309nam a2200121Ia 4500
008 170101s1968 xx 000 0 und d
082 _a526.9 ALL
100 _aAllan A. L.
245 0 _aPractical field surveying and computations
260 _aLondon
_bHeinemann
_c1968
300 _a689 p.
942 _2ddc
_cB
999 _c442816
_d442816