APA-viite (7. p.)

Wright, R. T. (2004). Environmental science: Toward a sustainable future. PHI.

Chicago-viite (17. p.)

Wright, Richard T. Environmental Science: Toward a Sustainable Future. New Delhi: PHI, 2004.

MLA-viite (9. p.)

Wright, Richard T. Environmental Science: Toward a Sustainable Future. PHI, 2004.