APA-referens

Wright, R. T., & Bernard, N. J. (2002). Environmental science towards a sustainable future (8th ed.). Prentice-Hall of India.

Chicago-stil citat

Wright, Richard T., och Nebel J. Bernard. Environmental Science Towards a Sustainable Future. 8th ed. New Delhi: Prentice-Hall of India, 2002.

MLA-referens

Wright, Richard T., och Nebel J. Bernard. Environmental Science Towards a Sustainable Future. 8th ed. Prentice-Hall of India, 2002.