APA

Brown Lester R,, . (2000). State of the World 2000: A worldwatch institute report on progress toward a sustainable society. New York: W.W. Norton & Company.

Chicago

Brown Lester R,, . 2000. State of the World 2000: A worldwatch institute report on progress toward a sustainable society. New York: W.W. Norton & Company.

Harvard

Brown Lester R,, . (2000). State of the World 2000: A worldwatch institute report on progress toward a sustainable society. New York: W.W. Norton & Company.

MLA

Brown Lester R,, . State of the World 2000: A worldwatch institute report on progress toward a sustainable society. New York: W.W. Norton & Company. 2000.