Beeby, A., & Brennan, A. (2008). First ecology: Ecological principles and environmental issues (3rd ed.). Oxford University Press.
Citace podle Chicago (17th ed.)Beeby, Alan, a Anne-Maria Brennan. First Ecology: Ecological Principles and Environmental Issues. 3rd ed. Oxford: Oxford University Press, 2008.
Citace podle MLA (9th ed.)Beeby, Alan, a Anne-Maria Brennan. First Ecology: Ecological Principles and Environmental Issues. 3rd ed. Oxford University Press, 2008.
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