Bergmann, H. (1973). Guide to the economic evaluation of irrigation projects. Organisation for Economic Co-operation and Development.
Citace podle Chicago (17th ed.)Bergmann, Hellmuth. Guide to the Economic Evaluation of Irrigation Projects. [Paris]: Organisation for Economic Co-operation and Development, 1973.
Citace podle MLA (9th ed.)Bergmann, Hellmuth. Guide to the Economic Evaluation of Irrigation Projects. Organisation for Economic Co-operation and Development, 1973.
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