Pacific Northwest Research Station (Portland, Or.), & McGinnis, W. J. (1997). County portraits of Washington State. U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPacific Northwest Research Station (Portland, Or.), और Wendy J. McGinnis. County Portraits of Washington State. Portland, Or. (333 S.W. First Ave., Portland 97208-3890): U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1997.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPacific Northwest Research Station (Portland, Or.), और Wendy J. McGinnis. County Portraits of Washington State. U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1997.
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