Não informado. (1961). Housing and planning references. Department of Housing and Urban Development.
Chicago-Zitierstil (17. Ausg.)Não informado. Housing and Planning References. Washington: Department of Housing and Urban Development, 1961.
MLA-Zitierstil (8. Ausg.)Não informado. Housing and Planning References. Department of Housing and Urban Development, 1961.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.