Hult, R. E. (1960). Lost mines and treasures of the Pacific Northwest (2d ed.). Binfords & Mort.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHult, Ruby El. Lost Mines and Treasures of the Pacific Northwest. 2d ed. Portland, Or.: Binfords & Mort, 1960.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHult, Ruby El. Lost Mines and Treasures of the Pacific Northwest. 2d ed. Binfords & Mort, 1960.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.