United States. Forest Service. (1950). How forest conditions affected the 1948 Columbia flood. U.S. Gov. Print. Off..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUnited States. Forest Service. How Forest Conditions Affected the 1948 Columbia Flood. Washington: U.S. Gov. Print. Off., 1950.
एमएलए (8वां संस्करण) प्रशस्ति पत्रUnited States. Forest Service. How Forest Conditions Affected the 1948 Columbia Flood. U.S. Gov. Print. Off., 1950.
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