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Citace podle Chicago (17th ed.)Worldwatch Institute a Lester Russell Brown. State of the World 1998: A Worldwatch Institute Report on Progress Toward a Sustainable Society. London: Earthscan ; Norton & company, 1998.
Citace podle MLA (8th ed.)Worldwatch Institute a Lester Russell Brown. State of the World 1998: A Worldwatch Institute Report on Progress Toward a Sustainable Society. Earthscan ; Norton & company, 1998.
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