APA-Zitierstil (7. Ausg.)
(1968). Directory of authorities and principal organizations related to the building industry. United Nations.
Chicago-Zitierstil (17. Ausg.)
Directory of Authorities and Principal Organizations Related to the Building Industry. New York: United Nations, 1968.
MLA-Zitierstil (9. Ausg.)
Directory of Authorities and Principal Organizations Related to the Building Industry. United Nations, 1968.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.