00339pam a2200145a 44500008004100000020000900041041001200050082000900062100001100071245005300082250000600135260003500141300000800176650000900184230515b1985    xxu||||| |||| 00| 0 eng d  aNULL  aENGLISH  aN.D.  aSiemen  aPower Supply System In Communication Engineering  a0  aNULLbWiley Eastern Ltd.c1985  a379  aNULL