Style de citation APA (7e éd.)
(1968). Directory of authorities and principal organizations related to the building industry. United Nations.
Style de citation Chicago (17e éd.)
Directory of Authorities and Principal Organizations Related to the Building Industry. New York: United Nations, 1968.
Style de citation MLA (9e éd.)
Directory of Authorities and Principal Organizations Related to the Building Industry. United Nations, 1968.
Attention : ces citations peuvent ne pas être correctes à 100%.