000 00300nam a2200121Ia 4500
008 220601s2015 xx 000 0 eng d
100 _aAGOR,R.
245 2 _aA TEXTBOOK OF SURVEYING AND LEVELLING
250 _a3RD Ed.
260 _c2015
_aNew Delhi
_bKHANNA PUB
300 _a1216
942 _2ddc
_cBTECH
999 _c3396
_d3396