United States. Agricultural Research Service. (1963). Soil and water conservation research in the Pacific northwest. Gov't..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUnited States. Agricultural Research Service. Soil and Water Conservation Research in the Pacific Northwest. Wash., D.C.: Gov't., 1963.
एमएलए (8वां संस्करण) प्रशस्ति पत्रUnited States. Agricultural Research Service. Soil and Water Conservation Research in the Pacific Northwest. Gov't., 1963.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.