APA引文

(2005). National geographic: Stem cells how far will we go? Washington, DC: National Geographic Society.

Trích dẫn kiểu Chicago

National Geographic: Stem Cells How Far Will We Go? Washington, DC: National Geographic Society, 2005.

MLA引文

National Geographic: Stem Cells How Far Will We Go? Washington, DC: National Geographic Society, 2005.

警告：這些引文格式不一定是100％准確.