Great Britain. Central Computer Agency. (1979). Microcomputer operating systems. The Agency.
Chicago-referens (17:e uppl.)Great Britain. Central Computer Agency. Microcomputer Operating Systems. London: The Agency, 1979.
MLA-referens (8:e uppl.)Great Britain. Central Computer Agency. Microcomputer Operating Systems. The Agency, 1979.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.