00394nam a2200157Ia 4500008004100000041000800041082002300049100002200072245004000094260003400134300000800168365001600176710001400192906001100206999001900217230312s9999    xx            000 0 und d  aeng  a005.43b005.43 BAC  aBach M.J.9113320  aDesign Of The Unix Operating System  c1986bPrentice- Hall Of India  a471  cRs.b225.00  aBach M.J.  b281.25  c131280d131280