United States. Central Intelligence Agency. (1977). Communist aid to the less developed countries of the free world, 1976. Central Intelligence Agency.
Chicago-referens (17:e uppl.)United States. Central Intelligence Agency. Communist Aid to the Less Developed Countries of the Free World, 1976. [Washington]: Central Intelligence Agency, 1977.
MLA-referens (8:e uppl.)United States. Central Intelligence Agency. Communist Aid to the Less Developed Countries of the Free World, 1976. Central Intelligence Agency, 1977.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.