00333pam a2200145a 44500008004100000020000900041041001200050082000900062100001600071245003800087250000600125260003900131300000800170650000900178230515b1993    xxu||||| |||| 00| 0 eng d  aNULL  aENGLISH  aN.D.  aKernighan W  aThe Unix Programming Environmient  a0  aNULLbPrentice Hall of Indiac1993  a357  aNULL