00369nam a2200133Ia 4500008004100000082001600041100002300057245004100080260004000121300000800161650003400169650001800203653001400221170901s1958    xx            000 0 und d  a526.3bK84S  aKnight, Bernard H. 0aSurveying and Levelling for Students  aBombaybAsia Publishing Housec1958  a163  aAstronomy and allied sciences  aPure Sciences  aSurveying