Não informado. (1961). Housing and planning references. Department of Housing and Urban Development.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Housing and Planning References. Washington: Department of Housing and Urban Development, 1961.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Housing and Planning References. Department of Housing and Urban Development, 1961.
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