Gale, R. L. (2003). A Henry Wadsworth Longfellow companion. Greenwood Press.
芝加哥风格引文Gale, Robert L. A Henry Wadsworth Longfellow Companion. Westport, Conn.: Greenwood Press, 2003.
MLA引文Gale, Robert L. A Henry Wadsworth Longfellow Companion. Greenwood Press, 2003.
警告：这些引文格式不一定是100％准确.