APA (7th ed.) Citation

Worldwatch Institute & Brown, L. R. (1990). State of the world: A Worldwatch Institute report on progress toward a sustainable society. Norton.

Chicago Style (17th ed.) Citation

Worldwatch Institute and Lester R. Brown. State of the World: A Worldwatch Institute Report on Progress Toward a Sustainable Society. New York: Norton, 1990.

MLA (9th ed.) Citation

Worldwatch Institute and Lester R. Brown. State of the World: A Worldwatch Institute Report on Progress Toward a Sustainable Society. Norton, 1990.

Warning: These citations may not always be 100% accurate.