TY  - BOOK
T1  - Disk operating system.
T2  - Programming family
LA  - English
PP  - Boca Raton, Fla.
PB  - International Business Machines
YR  - 1987
ED  - Version 3.30.
UL  - https://tuklas.up.edu.ph/Record/UP-1685594773861264136
CN  - QA 76.76 O63 D57 1987
KW  - Operating systems (Computers)
KW  - IBM Personal Computer : Programming.
ER  -