APA引文

Berenstain, S., & Berenstain, J. (2012). Nothing ever happens at the South Pole. Harper.

Chicago Style (17th ed.) Citation

Berenstain, Stan, and Jan Berenstain. Nothing Ever Happens at the South Pole. New York, NY: Harper, 2012.

MLA引文

Berenstain, Stan, and Jan Berenstain. Nothing Ever Happens at the South Pole. Harper, 2012.