Koester, F. (1909). Hydroelectric developments and engineering: A practical and theoretical treatise on the development, design, construction, equipment and operation of hydroelectric transmission plants. D. Van Nostrand Co..
Lua i Stíl Chicago (17ú heag.)Koester, Frank. Hydroelectric Developments and Engineering: A Practical and Theoretical Treatise on the Development, Design, Construction, Equipment and Operation of Hydroelectric Transmission Plants. New York: D. Van Nostrand Co., 1909.
Lua MLA (8ú heag.)Koester, Frank. Hydroelectric Developments and Engineering: A Practical and Theoretical Treatise on the Development, Design, Construction, Equipment and Operation of Hydroelectric Transmission Plants. D. Van Nostrand Co., 1909.
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