00337nam a2200133Ia 4500008004100000082001600041100002100057245001400078260003700092300000800129650003400137650001800171653001400189170901s1981    xx            000 0 und d  a526.3bP93S  aPunmia, Dr. B.C. 0aSurveying  aDelhibStandard Book Housec1981  a539  aAstronomy and allied sciences  aPure Sciences  aSurveying