Cunningham, W. P., & Cunningham, M. A. (2020). Principles of environmental science: Inquiry and applications (Ninth edition.). McGraw-Hill Higher Education.
Citace podle Chicago (17th ed.)Cunningham, William P., a Mary Ann Cunningham. Principles of Environmental Science: Inquiry and Applications. Ninth edition. Boston: McGraw-Hill Higher Education, 2020.
Citace podle MLA (9th ed.)Cunningham, William P., a Mary Ann Cunningham. Principles of Environmental Science: Inquiry and Applications. Ninth edition. McGraw-Hill Higher Education, 2020.
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