TY  - GEN
AU  - Williams, Ron.
AU  - Koronios, Andy
TI  - Teach yourself DOS for IBM & compatibles
AV  - QA76.76 O63Wil.
PY  - 1989///
PB  - USQ Press
KW  - PC DOS (Computer operating system)
KW  - MS-DOS (Computer operating system)
KW  - IBM microcomputers - Programming
N1  - 401
ER  -