Nokes, R. G. (2013). Breaking chains: Slavery on trial in the Oregon Territory. Oregon State University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNokes, R. Gregory. Breaking Chains: Slavery on Trial in the Oregon Territory. Corvallis, OR: Oregon State University Press, 2013.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNokes, R. Gregory. Breaking Chains: Slavery on Trial in the Oregon Territory. Oregon State University Press, 2013.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.