TY  - BOOK
AU  - O'Leary, Timothy J. and O'Leary ,Linda I.
TI  - DOS 6.0 with Introduction to the Labs 
SN  - 0-07-048996-3
PY  - 1994///
CY  - New York
PB  - McGraw - Hill, Inc.
N1  - Includes Summary and Index
ER  -