Cita APA (7a ed.)
Harrison, P. (1992). The third revolution: Environment, population, and a sustainable world. Penguin books.
Cita Chicago Style (17a ed.)
Harrison, Paul. The Third Revolution: Environment, Population, and a Sustainable World. London: Penguin books, 1992.
Cita MLA (9a ed.)
Harrison, Paul. The Third Revolution: Environment, Population, and a Sustainable World. Penguin books, 1992.
Precaución: Estas citas no son 100% exactas.