Nations of the earth report :
United Nations Conference on Environment and Development : national reports summaries.
APA Citation
United Nations Conference on Environment and Development (1992: Rio de Janeiro, B. (1992). Nations of the earth report: United Nations Conference on Environment and Development : national reports summaries. Geneva: UNCED.
MLA Citation
United Nations Conference on Environment and Development (1992: Rio de Janeiro, Brazil). Nations of the Earth Report: United Nations Conference On Environment And Development : National Reports Summaries. Geneva: UNCED, 1992.
Warning: These citations may not always be complete (especially for serials).