Bergquist, C. W. (1978). Coffee and conflict in Colombia, 1886-1910. Duke University Press.
芝加哥风格引文Bergquist, Charles W. Coffee and Conflict in Colombia, 1886-1910. Durham, N.C.: Duke University Press, 1978.
MLA引文Bergquist, Charles W. Coffee and Conflict in Colombia, 1886-1910. Duke University Press, 1978.
警告：这些引文格式不一定是100％准确.