TY  - BOOK
AU  - Busch,David D.
TI  - Pc/MS DOS 4.0 for Hard Disk Users 
SN  - 0553346008
PY  - 1989///
CY  - [S.l.]
PB  - Bantam Books
UR  - http://www.amazon.com/exec/obidos/ASIN/B0010KIPW4/chopaconline-20
ER  -