Washington (State). Division of Mines and Mining. (1940). Directory of Washington metallic mining properties. [s.n.].
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWashington (State). Division of Mines and Mining. Directory of Washington Metallic Mining Properties. Olympia, Wash.: [s.n.], 1940.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWashington (State). Division of Mines and Mining. Directory of Washington Metallic Mining Properties. [s.n.], 1940.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.