Zetler, R. L., & Crouch, W. G. 1. . . j. a. (1951). Advanced writing. Ronald Press.
芝加哥风格引文Zetler, Robert L., 与 William George 1903- joint auth Crouch. Advanced Writing. New York: Ronald Press, 1951.
MLA引文Zetler, Robert L., 与 William George 1903- joint auth Crouch. Advanced Writing. Ronald Press, 1951.
警告：这些引文格式不一定是100％准确.