000 00272nam a2200121Ia 4500
008 180721s9999 xx 000 0 und d
100 _aSingh. S.R & Shahani. P.B
245 0 _aHigher Surveying
260 _bNem chand
260 _c1959
365 _b0.00
942 _cBK
999 _c151304
_d151304