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Start Over Formats Still image ✖Remove constraint Formats: Still image Subjects Social Change ✖Remove constraint Subjects: Social Change Authors United Nations Conference on Environment and Development (1992 : Rio de Janeiro, Brazil) ✖Remove constraint Authors: United Nations Conference on Environment and Development (1992 : Rio de Janeiro, Brazil)

1. Earth summit

Author(s):
United Nations Conference on Environment and Development (1992 : Rio de Janeiro, Brazil)
Publication:
[New York] : United Nations Dept. of Public Information, 1992
Subject(s):
Environment
Social Change

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