Northwest Irrigation and Development Congress Seattle, Wash. (1920). Proceedings of Northwest Irrigation and Development Congress: Held at Seattle, Washington, September 16-17, 1920.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNorthwest Irrigation and Development Congress Seattle, Wash. Proceedings of Northwest Irrigation and Development Congress: Held at Seattle, Washington, September 16-17, 1920. [Seattle?, 1920.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNorthwest Irrigation and Development Congress Seattle, Wash. Proceedings of Northwest Irrigation and Development Congress: Held at Seattle, Washington, September 16-17, 1920. 1920.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.