TY  - BOOK
AU  - SIMPSON,ALAN
TI  - Up L Runing With Dos 6.2 / 
U1  - 005.4469 
PY  - 1994///
CY  - [S.N] : 
PB  - SYBEX INC. ، 
KW  - MS - DOS ( COMPUTER OPERATING SYSTEM )
ER  -