TY  - BOOK
AU  - Robbins, Judd
TI  - Mastering DOS
SN  - 971519013
U1  - GC 005.43 R534 1990 
PY  - 1990///
CY  - Quezon City
PB  - Perfect Bound Pub.
KW  - Computer operating systems
N1  - Includes index
ER  -