United Nations. Economic Commission for Europe. (1951). Directory of building research and development organizations in Europe.
Chicago-Zitierstil (17. Ausg.)United Nations. Economic Commission for Europe. Directory of Building Research and Development Organizations in Europe. Geneva, 1951.
MLA-Zitierstil (8. Ausg.)United Nations. Economic Commission for Europe. Directory of Building Research and Development Organizations in Europe. 1951.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.