Manning, H., Spring, I., & Spring, V. (1991). Hiking the great Northwest. Mountaineers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रManning, Harvey, Ira Spring, और Vicky Spring. Hiking the Great Northwest. Seattle: Mountaineers, 1991.
एमएलए (8वां संस्करण) प्रशस्ति पत्रManning, Harvey, et al. Hiking the Great Northwest. Mountaineers, 1991.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.