Jensen, F. (1990). Old French and comparative Gallo-Romance syntax. M. Niemeyer.
芝加哥风格引文Jensen, Frede. Old French and Comparative Gallo-Romance Syntax. Tübingen: M. Niemeyer, 1990.
MLA引文Jensen, Frede. Old French and Comparative Gallo-Romance Syntax. M. Niemeyer, 1990.
警告：这些引文格式不一定是100％准确.