TY  - BOOK
AU  - Letwin D.
TI  - Inside Operating System
SN  - 0000022313
U1  - 1.6424 
PY  - 1988///
CY  - New Delhi
PB  - B.P.B. Publications
KW  -  Inside
KW  -  Operating
KW  -  System
KW  -  Unix
KW  - First
KW  - Operating Systems
ER  -