Cita APA (7th ed.)

Worldwatch Institute, Brown, L. R., & Starke, L. (1988). State of the world 1988: A Worldwatch Institute report on progress toward a sustainable society. Norton.

Cita Chicago (17th ed.)

Worldwatch Institute, Lester R. Brown, i Linda Starke. State of the World 1988: A Worldwatch Institute Report on Progress Toward a Sustainable Society. New York : London: Norton, 1988.

Cita MLA (8th ed.)

Worldwatch Institute, et al. State of the World 1988: A Worldwatch Institute Report on Progress Toward a Sustainable Society. Norton, 1988.