Dubey, R. (1992). Human ecology and environmental education: Interdisciplinary approaches. Chungh Publications.
Citace podle Chicago (17th ed.)Dubey, R.M. Human Ecology and Environmental Education: Interdisciplinary Approaches. Allahabad: Chungh Publications, 1992.
Citace podle MLA (9th ed.)Dubey, R.M. Human Ecology and Environmental Education: Interdisciplinary Approaches. Chungh Publications, 1992.
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