Cita APA (7a ed.)

Wright Richard T. (2011). Environmental science: Toward a sustainable future. PHI Learning.

Cita Chicago Style (17a ed.)

Wright Richard T. Environmental Science: Toward a Sustainable Future. New Delhi: PHI Learning, 2011.

Cita MLA (9a ed.)

Wright Richard T. Environmental Science: Toward a Sustainable Future. PHI Learning, 2011.