Snook, J. (2008). Ice age extinction: Cause and human consequences. Algora Pub..
芝加哥风格引文Snook, Jim. Ice Age Extinction: Cause and Human Consequences. New York: Algora Pub., 2008.
MLA引文Snook, Jim. Ice Age Extinction: Cause and Human Consequences. Algora Pub., 2008.
警告：这些引文格式不一定是100％准确.