APA
UN ASSOCIATION, UN ASSOCIATION, . (1949). United nations associations yearbook 1949-50. London: Hutchinson.
Chicago
UN ASSOCIATION, UN ASSOCIATION, . 1949. United nations associations yearbook 1949-50. London: Hutchinson.
Harvard
UN ASSOCIATION, UN ASSOCIATION, . (1949). United nations associations yearbook 1949-50. London: Hutchinson.
MLA
UN ASSOCIATION, UN ASSOCIATION, . United nations associations yearbook 1949-50. London: Hutchinson. 1949.
