APA (7 वां संस्करण) प्रशस्ति पत्र

Space, R. S. (1964). The Clearwater story: A history of the Clearwater National Forest. U.S. Dept. of Agriculture, Forest Service, Northwest Region.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Space, Ralph S. The Clearwater Story: A History of the Clearwater National Forest. Missoula, Mont.: U.S. Dept. of Agriculture, Forest Service, Northwest Region, 1964.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Space, Ralph S. The Clearwater Story: A History of the Clearwater National Forest. U.S. Dept. of Agriculture, Forest Service, Northwest Region, 1964.

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