Brown, L. R., Flavin, C., & Postel, S. (1991). Saving the planet: How to shape an environmentally sustainable global economy. W.W. Norton.
Cita Chicago (17th ed.)Brown, Lester Russell, Christopher Flavin, i Sandra Postel. Saving the Planet: How to Shape an Environmentally Sustainable Global Economy. New York: W.W. Norton, 1991.
Cita MLA (9th ed.)Brown, Lester Russell, et al. Saving the Planet: How to Shape an Environmentally Sustainable Global Economy. W.W. Norton, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.