Arndt, P., & Lutting, G. W. (1987). Mineral resources' extraction, environmental protection and land-use planning in the industrial and developing countries. E.Schweizerbart'sche Verlagsbuchhandlung.
Παραπομπή σε μορφή Chicago (17η εκδ.)Arndt, Peter, και Gerd W. Lutting. Mineral Resources' Extraction, Environmental Protection and Land-use Planning in the Industrial and Developing Countries. Stuttgart: E.Schweizerbart'sche Verlagsbuchhandlung, 1987.
Παραπομπή σε μορφή MLA (8th εκδ.)Arndt, Peter, και Gerd W. Lutting. Mineral Resources' Extraction, Environmental Protection and Land-use Planning in the Industrial and Developing Countries. E.Schweizerbart'sche Verlagsbuchhandlung, 1987.
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