TY  - BOOK
TI  - Ms-Dos version 5.0: : user's guide and reference for the Ms-Dos operating system
AV  - MATH QA76.76.D46M48 
PY  - 1991///
CY  - London
PB  -  : Microsoft Corporation
KW  - MS-DOS (computer file)
KW  -  Operating systems (computer)
N1  - Includes index
ER  -