Spretnak, C., Capra, F., & Lutz, W. (1986). Green politics: The global promise (Rev. ed.). Paladin Grafton.
Cita Chicago (17th ed.)Spretnak, Charlene, Fritjof Capra, i Wulf-Rudiger Lutz. Green Politics: The Global Promise. Rev. ed. London: Paladin Grafton, 1986.
Cita MLA (9th ed.)Spretnak, Charlene, et al. Green Politics: The Global Promise. Rev. ed. Paladin Grafton, 1986.
Atenció: Aquestes cites poden no estar 100% correctes.