TY  - GEN
AU  - Deitel, Harvey M7851
TI  - An introduction to operating systems/2nd ed
SN  - 0201455625
U1  - 681.3.066 
PY  - 1990///
CY  - New York
PB  - Addison Wesley
KW  - 681.3.066
KW  - Operating system7850
ER  -