TY - BOOK ED - United Nations, U ; United Nations conference on environment and development, UNCED TI - Agenda 21. Rio declaration. Forest principles. Drafts T2 - A/Conf.151/4 SN - 9211004829 PY - 1992/// CY - New York KW - UNCED; environment; ecology; conference; social conditions; economic conditions; development; hazardous waste; radiation; pollution; contamination; environmental damage; population; document ER -