00603mas a22001571  4500008004100000245009000041260004000131300001900171500012200190650003200312700002900344700002300373700002500396942000700421999001700428880509d19611963nyuuu         0    0eng d00aLectures in theoretical physics.cEdited by Wesley E., B. W . Downs and Joanne Downs.  aNew York,bInterscience Publishers.  a[625 p.]bill.  aVolume IV lectures delivered at the summer institute for theoretical physics, University of Colorado, Boulder, 1961.. 0aMathematical physics.92291  aBrittin, Wesley E.99794  aDowns, B. W.99795  aDowns, Joanne.99796  cBK  c30950d30950