Stienstra, T. (1988). Pacific Northwest camping: The complete guide to recreation areas in Washington and Oregon. Foghorn Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रStienstra, Tom. Pacific Northwest Camping: The Complete Guide to Recreation Areas in Washington and Oregon. San Francisco, Calif.: Foghorn Press, 1988.
एमएलए (8वां संस्करण) प्रशस्ति पत्रStienstra, Tom. Pacific Northwest Camping: The Complete Guide to Recreation Areas in Washington and Oregon. Foghorn Press, 1988.
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