The institute of national planning. (1966). System Operation Reference Manual : IBM 1401 and 1460 Data Processing System: Programming Courses. The institute of national planning.
Chicago-referens (17:e uppl.)The institute of national planning. System Operation Reference Manual : IBM 1401 and 1460 Data Processing System: Programming Courses. Cairo: The institute of national planning, 1966.
MLA-referens (9:e uppl.)The institute of national planning. System Operation Reference Manual : IBM 1401 and 1460 Data Processing System: Programming Courses. The institute of national planning, 1966.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.