Cita APA (7th ed.)
Pielou, E. C. (2001). The energy of nature. University of Chicago Press.
Cita Chicago (17th ed.)
Pielou, E. C. The Energy of Nature. Chicago: University of Chicago Press, 2001.
Cita MLA (9th ed.)
Pielou, E. C. The Energy of Nature. University of Chicago Press, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.