Norlin, G., & Ellsworth, R. E. (1985). A voice from Colorado's past for the present: Selected writings of George Norlin. Colorado Associated University Press.
芝加哥风格引文Norlin, George, 与 Ralph E. Ellsworth. A Voice from Colorado's Past for the Present: Selected Writings of George Norlin. Boulder, Colo.: Colorado Associated University Press, 1985.
MLA引文Norlin, George, 与 Ralph E. Ellsworth. A Voice from Colorado's Past for the Present: Selected Writings of George Norlin. Colorado Associated University Press, 1985.
警告：这些引文格式不一定是100％准确.