Cita APA

Harrison, P. (1993). The third revolution: Population, environment, and a sustainable world. Penguin Books.

Citación estilo Chicago

Harrison, Paul. The Third Revolution: Population, Environment, and a Sustainable World. London ; New York: Penguin Books, 1993.

Cita MLA

Harrison, Paul. The Third Revolution: Population, Environment, and a Sustainable World. Penguin Books, 1993.

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