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1I whakaputaina 1978Ngā marau “...National parks and reserves....”
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2ā- Richez, GerardNgā marau “...National parks and reserves Europe....”
I whakaputaina 1992
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3I whakaputaina 1997Ngā marau “...United Nations Conference on Environment and Development (1992 : Rio de Janeiro, Brazil)...”
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4I whakaputaina 1997Ngā marau “...United Nations Conference on Environment and Development (1992 : Rio de Janeiro, Brazil)...”
Pukapuka