Cita APA (7th ed.)
ebrary, Inc, & Liu, J. (2011). Sources, sinks and sustainability. Cambridge University Press.
Cita Chicago (17th ed.)
ebrary, Inc, i Jianguo Liu. Sources, Sinks and Sustainability. Cambridge ; New York: Cambridge University Press, 2011.
Cita MLA (9th ed.)
ebrary, Inc, i Jianguo Liu. Sources, Sinks and Sustainability. Cambridge University Press, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.