Berenstain, S., & Berenstain, J. (2012). Nothing ever happens at the South Pole. Harper.
芝加哥风格引文Berenstain, Stan, 与 Jan Berenstain. Nothing Ever Happens at the South Pole. New York, NY: Harper, 2012.
MLA引文Berenstain, Stan, 与 Jan Berenstain. Nothing Ever Happens at the South Pole. Harper, 2012.
警告：这些引文格式不一定是100％准确.