Nebel, B. J., & Wright, R. T. (2000). Environmental Science: The Way the World Works (7th ed.). Prentice Hall.
Chicago-čujuhus (17. p.)Nebel, Bernard J., juo Richard T. Wright. Environmental Science: The Way the World Works. 7th ed. Upper Saddle River, New Jersey: Prentice Hall, 2000.
MLA-čujuhus (9. p.)Nebel, Bernard J., juo Richard T. Wright. Environmental Science: The Way the World Works. 7th ed. Prentice Hall, 2000.
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