Romanistentag Vienna, Austria, ebrary, Inc, Dufter, A., & Jacob, D. (2009). Focus and background in Romance languages. John Benjamins Pub. Company.
芝加哥风格引文Romanistentag Vienna, Austria, Inc ebrary, Andreas Dufter, 与 Daniel Jacob. Focus and Background in Romance Languages. Philadelphia: John Benjamins Pub. Company, 2009.
MLA引文Romanistentag Vienna, Austria, et al. Focus and Background in Romance Languages. John Benjamins Pub. Company, 2009.
警告：这些引文格式不一定是100％准确.