APA
(1957). Education clearing houses and documentation centres: A preliminary international survey. Paris, France: United Nations Educational, Scientific and Cultural Organization.
Chicago
1957. Education clearing houses and documentation centres: A preliminary international survey. Paris, France: United Nations Educational, Scientific and Cultural Organization.
Harvard
(1957). Education clearing houses and documentation centres: A preliminary international survey. Paris, France: United Nations Educational, Scientific and Cultural Organization.
MLA
Education clearing houses and documentation centres: A preliminary international survey. Paris, France: United Nations Educational, Scientific and Cultural Organization. 1957.
