00429nam a2200145Ia 4500003000900000008004100009040001600050080001500066100001600081245008300097260003400180300001300214490004500227650001100272IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a533.5bDUN  aDunoyer, L. 0aVacuum practicecL. Dunoyer                                                     aLondonbG.Bell and Sonsc1926  ax, 228p.  aInternational textbooks of exact science  aVacuum