Calkins, E. (1979). Adventure at beaver falls. Southern Publishing Association.
芝加哥风格引文Calkins, Erling. Adventure at Beaver Falls. Nashville, TN: Southern Publishing Association, 1979.
MLA引文Calkins, Erling. Adventure at Beaver Falls. Southern Publishing Association, 1979.
警告：这些引文格式不一定是100％准确.