TY  - BOOK
AU  - Beck,Leland L.
TI  - System software: an introduction to systems programming 
SN  - 0-201-42300-6
AV  - QA76.66 B42 1997
PY  - 1997///
CY  - Reading, Mass
PB  - Addison-Wesley
N1  - Incluye bibliografia
ER  -