APA引文

National Geographic Society (U.S.). (2009). National Geographic Kids beginner's United States atlas: It's your country, be a part of it! Washington, DC: National Geographic.

Trích dẫn kiểu Chicago

National Geographic Society (U.S.). National Geographic Kids Beginner's United States Atlas: It's Your Country, Be a Part of It! Washington, DC: National Geographic, 2009.

MLA引文

National Geographic Society (U.S.). National Geographic Kids Beginner's United States Atlas: It's Your Country, Be a Part of It! Washington, DC: National Geographic, 2009.

警告：這些引文格式不一定是100％准確.