00417nam a2200157Ia 4500003000900000008004100009040001600050080001700066100001800083245004700101250001200148260004800160300001000208650002200218650001900240IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a530.145bGUR  aGurney, R. W. 0aElementary quantum mechanicscR. W. Gurney  a2nd ed.  aCambridgebCambridge University Pressc1940  a161p.  aQuantum mechanics  aQuantum theory