00321nam a2200109Ia 4500008004100000041000800041082002000049100001700069245007500086260004200161300000800203211209s1971    xx            000 0 und d  aeng  a621.372 N71 BUR  aBURNSIDE C D  aASPECTS OF MODERN LAND SURVEYING ELECTROMAGNETIC DISTANCE MEASUREMENT   aLONDONbCROSBY LOCKWOOD STAPLESc1971  a128