Citace podle APA

Brown,Lester R. (1997). State of the world 1998: A world watch institute report on progress toward a sustainable society. W W Norton & Company.

Styl Chicago

Brown,Lester R. State of the World 1998: A World Watch Institute Report on Progress Toward a Sustainable Society. New York: W W Norton & Company, 1997.

Citace podle MLA

Brown,Lester R. State of the World 1998: A World Watch Institute Report on Progress Toward a Sustainable Society. W W Norton & Company, 1997.

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