TY  - BOOK
AU  - Larsen, Gwyne
AU  - Leeburg, Verlene
TI  - First looak at... DOS
SN  - 0070365857
U1  - GC 005.43 L32 1992 
PY  - 1992///
CY  - New York
PB  - Mitchell McGraw Hill
KW  - Computer operating system
N1  - Includes index
ER  -