00248nam a22001097a 4500020001800000082001300018100002400031245001600055260004100071300001200112650001400124  a9789350145920  a526.9SON  aSoni, Saurabh Kumar  aSurveying 1  aNew Delhi:bKataria and Sons,c2016.  a363p. ;  aSurveying