Ekberg, C. J. (2002). François Vallé and his world: Upper Louisiana before Lewis and Clark. University of Missouri Press.
芝加哥风格引文Ekberg, Carl J. François Vallé and His World: Upper Louisiana Before Lewis and Clark. Columbia, MO: University of Missouri Press, 2002.
MLA引文Ekberg, Carl J. François Vallé and His World: Upper Louisiana Before Lewis and Clark. University of Missouri Press, 2002.
警告：这些引文格式不一定是100％准确.