TY - BOOK AU - "UNITED NATION, ECONOMIC SOCIAL AFFAIRS(D/O)." ED - "UNITED NATION, ECONOMIC SOCIAL AFFAIRS(D/O)." TI - Self help practices in housing : Selected case studies U1 - "X9(D3):6.1-1.N7, L3/UN" PY - 1973/// CY - New PB - York United Nations U. S. A. KW - Housing Industry ER -