Cita APA

Northrop, R. B., & Connor, A. N. (2013). Ecological sustainability: Understanding complex issues. Boca Raton: CRC Press.

Citación estilo Chicago

Northrop, Robert B., and Anne N. Connor. Ecological Sustainability: Understanding Complex Issues. Boca Raton: CRC Press, 2013.

Cita MLA

Northrop, Robert B., and Anne N. Connor. Ecological Sustainability: Understanding Complex Issues. Boca Raton: CRC Press, 2013.