TY - BOOK ED - Commonwealth Conference on Development and Human Ecology TI - Human Ecology, Environmental Education and Sustainable Development: Report of the Ninth Commonwealth Conference on Development and Human Ecology SN - 0904713113 AV - GF3 .H86 1991 PY - 1991/// CY - London. : PB - Commonwealth Human Ecology Council ; Edinburgh : University of Edinburgh,. KW - Human ecology -- Congresses. Environmental education -- Congresses. Sustainable development -- Congresses. ER -