Gnasso, A. (2015). The long seventh century: Continuity and discontinuity in an age of transition. Peter Lang.
芝加哥风格引文Gnasso, Alessandro. The Long Seventh Century: Continuity and Discontinuity in an Age of Transition. Bern, Switzerland: Peter Lang, 2015.
MLA引文Gnasso, Alessandro. The Long Seventh Century: Continuity and Discontinuity in an Age of Transition. Peter Lang, 2015.
警告：这些引文格式不一定是100％准确.