Phelps, W. M. (2014). Nathan hale: The life and death of america's first spy. ForeEdge.
芝加哥风格引文Phelps, William M. Nathan Hale: The Life and Death of America's First Spy. Lebanon, New Hampshire: ForeEdge, 2014.
MLA引文Phelps, William M. Nathan Hale: The Life and Death of America's First Spy. ForeEdge, 2014.
警告：这些引文格式不一定是100％准确.