Thollander, E. (1993). Back roads of Oregon: 82 trips on Oregon's scenic byways (Updated ed.). Sasquatch Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रThollander, Earl. Back Roads of Oregon: 82 Trips on Oregon's Scenic Byways. Updated ed. Seattle: Sasquatch Books, 1993.
एमएलए (8वां संस्करण) प्रशस्ति पत्रThollander, Earl. Back Roads of Oregon: 82 Trips on Oregon's Scenic Byways. Updated ed. Sasquatch Books, 1993.
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