TY  - BOOK
AU  - Ashley,Ruth
AU  - Fernandez,Judi N.
TI  - PC DOS: a self-teaching guide 
SN  - 0471824712 (pbk) :
AV  - QA76.8.I2594 A83 1985
U1  - 001.64�19 
PY  - 1985///
CY  - New York
PB  - Wiley
KW  - IBM Personal Computer
KW  - Programming
KW  - PC DOS (Computer operating system)
ER  -