00642nam a2200193Ia 4500003000900000008004100009040001600050080001300066100002700079245010100106250001200207260005100219300001400270490003700284650001800321942000700339999001300346952008900359IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a538bHAZ  aHazard, Daniel L92129 0aDirections for magnetic measurementscDaniel L  Hazard                                            a3rd ed.  aWashingtonbU. S. Department of Commercec1930  avi, 129p.  aU.S. department of commerce; 166  aMagnetism956  cBK  c985d985  00104070aBANbBANcGENd0000-00-00l0o538/ HAZp1026r2021-11-05w0000-00-00yBK