000 00311nam a2200121Ia 4500
008 170101s1982 xx 000 0 und d
082 _a526.9 AGO
100 _aAgor R.
245 2 _aA Text Book of Surveying & Levelling,.
260 _aNew Delhi
_bKhanna Publishers
_c1982
300 _a429 p
942 _2ddc
_cB
999 _c902616
_d902616