United States. National Park Service. (1967). Prospector, cowhand, and sodbuster: Historic places associated with the mining, ranching, and farming frontiers in the trans-Mississippi West. [For sale by the Supt. of Docs., U.S. Govt. Print. Off.].
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUnited States. National Park Service. Prospector, Cowhand, and Sodbuster: Historic Places Associated with the Mining, Ranching, and Farming Frontiers in the Trans-Mississippi West. Washington: [For sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1967.
एमएलए (8वां संस्करण) प्रशस्ति पत्रUnited States. National Park Service. Prospector, Cowhand, and Sodbuster: Historic Places Associated with the Mining, Ranching, and Farming Frontiers in the Trans-Mississippi West. [For sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1967.