Peacock, K. W. (2008). Natural resources and sustainable: Development. Facts on file.
Cita Chicago (17th ed.)Peacock, Kathy Wilson. Natural Resources and Sustainable: Development. New York: Facts on file, 2008.
Cita MLA (9th ed.)Peacock, Kathy Wilson. Natural Resources and Sustainable: Development. Facts on file, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.