Spring, I., & Manning, H. (1994). 100 hikes in Washington's North Cascades National Park Region (2nd ed.). Mountaineers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSpring, Ira, और Harvey Manning. 100 Hikes in Washington's North Cascades National Park Region. 2nd ed. Seattle, Wash.: Mountaineers, 1994.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSpring, Ira, और Harvey Manning. 100 Hikes in Washington's North Cascades National Park Region. 2nd ed. Mountaineers, 1994.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.