United Nations Conference on Environment and Development.

গ্রন্থ-পঞ্জীর বিবরন
সংস্থা লেখক:	United Nations Conference on Environment and Development (1992 : Rio de Janeiro, Brazil;)
বিন্যাস:	গ্রন্থ
ভাষা:	English
প্রকাশিত:	S.L. s.n. [199?]
বিষয়গুলি:	United Nations Conference on Environment and Development (1992 : Rio de Janeiro, Brazil) Environmental policy > International cooperation. Economic development > Environmental aspects.