TY  - BOOK
AU  - Davis,William S.
TI  - Operating systems: A systematic view 
SN  - 0201011182
U1  - 005.432  22
PY  - 1977///
CY  - Reading, Mass.
PB  - Addison-Wesley Pub. Co.
KW  - Operating systems (Computers)
N1  - Includes index; Computer science
ER  -