Não informado. (1961). Housing and planning references. Department of Housing and Urban Development.
Chicago-referens (17:e uppl.)Não informado. Housing and Planning References. Washington: Department of Housing and Urban Development, 1961.
MLA-referens (8:e uppl.)Não informado. Housing and Planning References. Department of Housing and Urban Development, 1961.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.