APA引文

Heiligman, D., & Humphrey, N. J. A. (2007). Celebrate Christmas. National Geographic.

Chicago Style (17th ed.) Citation

Heiligman, Deborah, and Nathan J. A. Humphrey. Celebrate Christmas. Washington, D.C.: National Geographic, 2007.

MLA引文

Heiligman, Deborah, and Nathan J. A. Humphrey. Celebrate Christmas. National Geographic, 2007.

警告：這些引文格式不一定是100％准確.