Northwest Irrigation and Development Congress Seattle, Wash. (1920). Proceedings of Northwest Irrigation and Development Congress: Held at Seattle, Washington, September 16-17, 1920.
Style de citation Chicago (17e éd.)Northwest Irrigation and Development Congress Seattle, Wash. Proceedings of Northwest Irrigation and Development Congress: Held at Seattle, Washington, September 16-17, 1920. [Seattle?, 1920.
Style de citation MLA (8e éd.)Northwest Irrigation and Development Congress Seattle, Wash. Proceedings of Northwest Irrigation and Development Congress: Held at Seattle, Washington, September 16-17, 1920. 1920.
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