00500nam a2200157Ia 4500003000900000008004100009040001600050080001500066100001200081245014600093260003100239300001500270650001900285650002200304700001600326IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a533.5bWAR  aWard, L 0aIntroduction to the theory and practice of high vacuum technologycL. Ward and J. P Bunn                                                       aLondonbButterworthsc1967  avii, 216p.  aVacuum physics  aVacuum technology  aBunn, J. P.