Gocht, W. (1980). Natural resources and development. A biannual collection of recent German contributors concerning the exploration and exploitation of natural resources. Vol. 12. Institut für Wissenschaftliche Zusammenarbeit.
Citace podle Chicago (17th ed.)Gocht, Werner. Natural Resources and Development. A Biannual Collection of Recent German Contributors Concerning the Exploration and Exploitation of Natural Resources. Vol. 12. Tübingen: Institut für Wissenschaftliche Zusammenarbeit, 1980.
Citace podle MLA (9th ed.)Gocht, Werner. Natural Resources and Development. A Biannual Collection of Recent German Contributors Concerning the Exploration and Exploitation of Natural Resources. Vol. 12. Institut für Wissenschaftliche Zusammenarbeit, 1980.
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