TY  - BOOK
AU  - Duncan,Ray
AU  - Petzold,Ray
AU  - Baker,M.Steven
AU  - Schulman,Andrew
AU  - Davis,Stephen R.
AU  - Nelson,Ross P.
AU  - Moote,Robert
TI  - Extending DOS edited by
SN  - 0201550539
PY  - 1990///
CY  - Reading, MA
PB  - Addison-Wesley
KW  - DOS (Computer program language)
KW  - Operating systems (Computers)
N1  - Title on cover : programming MS-DOS for the 1990s
ER  -