TY  - BOOK
AU  - Keller,Laurie S.
TI  - Operating systems: communicating with and controlling the computer 
SN  - 0136380409
PY  - 1988///
CY  - New York : 
PB  - Prentice Hall, 
KW  - Operating systems (Computers)
N1  - Includes bibliographies and index
ER  -