TY  - BOOK
AU  - Lien,David A.
TI  - MS-DOS, the basic course
SN  - 8123901283
U1  - 005.3682 22
PY  - 1989///
CY  - New Delhi
PB  - Cbs publishers
KW  - MS-DOS (Computer file)
N1  - Includes bibliographical references and index
ER  -