Bullock, D. (2014). Coal wars: Unions, strikes, and violence in depression-era central Washington. WSU Press, Washington State University.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBullock, David. Coal Wars: Unions, Strikes, and Violence in Depression-era Central Washington. Pullman, Washington: WSU Press, Washington State University, 2014.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBullock, David. Coal Wars: Unions, Strikes, and Violence in Depression-era Central Washington. WSU Press, Washington State University, 2014.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.