APA引文

Bausum, A. (2013). Our country's Presidents: All you need to know about the presidents, from George Washington to Barack Obama (4th trade ed.). National Geographic.

Chicago Style (17th ed.) Citation

Bausum, Ann. Our Country's Presidents: All You Need to Know About the Presidents, from George Washington to Barack Obama. 4th trade ed. Washington, D.C.: National Geographic, 2013.

MLA引文

Bausum, Ann. Our Country's Presidents: All You Need to Know About the Presidents, from George Washington to Barack Obama. 4th trade ed. National Geographic, 2013.

警告：這些引文格式不一定是100％准確.