Stepniewski, A. (1992). Birds of the Yakima River Canyon. U.S. Dept. of the Interior, Bureau of Land Management, Spokane District, Wenatchee Resource Area.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रStepniewski, Andrew. Birds of the Yakima River Canyon. Wenatchee, Wash.: U.S. Dept. of the Interior, Bureau of Land Management, Spokane District, Wenatchee Resource Area, 1992.
एमएलए (8वां संस्करण) प्रशस्ति पत्रStepniewski, Andrew. Birds of the Yakima River Canyon. U.S. Dept. of the Interior, Bureau of Land Management, Spokane District, Wenatchee Resource Area, 1992.
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