APA引文

Society, N. G. (2010). Buracos negros. National Geographic.

Chicago Style (17th ed.) Citation

Society, Nacional Geographic. Buracos Negros. National Geographic, 2010.

MLA引文

Society, Nacional Geographic. Buracos Negros. National Geographic, 2010.

警告：這些引文格式不一定是100％准確.