00321pam a2200145a 44500008004100000020000900041041001200050082000900062100001600071245003200087250000600119260003300125300000800158650000900166230515b1983    xxu||||| |||| 00| 0 eng d  aNULL  aENGLISH  aN.D.  aKeiser Gerd  aOptical Fiber Communication  a0  aNULLbMcgraw Hill Pub.c1983  a461  aNULL