United Nations Conference on Environment and Development.

التفاصيل البيبلوغرافية
مؤلف مشترك:	United Nations Conference on Environment and Development (1992 : Rio de Janeiro, Brazil;)
التنسيق:	كتاب
اللغة:	English
منشور في:	S.L. s.n. [199?]
الموضوعات:	United Nations Conference on Environment and Development (1992 : Rio de Janeiro, Brazil) Environmental policy > International cooperation. Economic development > Environmental aspects.