TY  - BOOK
T1  - OS sort/merge program
T2  - Systems reference library
A1  - Sin autor
A2  - International Business Machines Corporation - IBM
LA  - English
PP  - Sweden
PB  - [S.n.]
YR  - 1972
ED  - 8th ed.
UL  - http://vufind10-pruebas.sigbunlp.bibliotecas.unlp.edu.ar/Record/dif.51134
OP  - 145
NO  - OS-Release 21. Program number 360S-SM-023
ER  -