TY  - BOOK
AU  - Microsoft Corporation.
TI  - Microsoft MS - DOS: for the MS - pos operating system
U1  - 005.446 M626 1993 
CY  - United State of America
PB  - Microsoft Corporation.
KW  - MS- DOS (Computer file)
KW  - Micro--Computers
KW  - Operating systems
N1  - Include index
ER  -