APA

Brown L. R., Starke L. & Worldwatch Institute (Washington D. C.). (1994). State of the world 1994. New York: W. W. Norton.

Chicago

Brown Lester Russell, Starke Linda and Worldwatch Institute (Washington D. C.). 1994. State of the world 1994. New York: W. W. Norton.

Harvard

Brown L. R., Starke L. and Worldwatch Institute (Washington D. C.). (1994). State of the world 1994. New York: W. W. Norton.

MLA

Brown Lester Russell, Starke Linda and Worldwatch Institute (Washington D. C.). State of the world 1994. New York: W. W. Norton. 1994.