Houghton J.T, Ding Y, & Griggs D.J. (2001). Climate Change 2001: The Scientific Basis. Cambridge University Press.
Cita Chicago (17th ed.)Houghton J.T, Ding Y, i Griggs D.J. Climate Change 2001: The Scientific Basis. Cambridge: Cambridge University Press, 2001.
Cita MLA (9th ed.)Houghton J.T, et al. Climate Change 2001: The Scientific Basis. Cambridge University Press, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.