Hills, E., C., & Ford, J. D. M. (1917). First Spanish course. D.C. Heath.
芝加哥风格引文Hills, E., C., 与 J. D. M. Ford. First Spanish Course. New York: D.C. Heath, 1917.
MLA引文Hills, E., C., 与 J. D. M. Ford. First Spanish Course. D.C. Heath, 1917.
警告：这些引文格式不一定是100％准确.