Παραπομπή APA
Wright, R. T. (2005). Environmental science: Toward a sustainable future (9th ed.). Upper Saddle River, N.J.: Pearson Prentice Hall.
Παραπομπή Chicago StyleWright, Richard T. Environmental Science: Toward a Sustainable Future. 9th ed. Upper Saddle River, N.J.: Pearson Prentice Hall, 2005.
Παραπομπή MLAWright, Richard T. Environmental Science: Toward a Sustainable Future. 9th ed. Upper Saddle River, N.J.: Pearson Prentice Hall, 2005.
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