APA引文

Ziefert, H., & Kreloff, E. (2007). Found an apple. Sterling.

芝加哥风格引文

Ziefert, Harriet, 与 Elliot Kreloff. Found an Apple. New York: Sterling, 2007.

MLA引文

Ziefert, Harriet, 与 Elliot Kreloff. Found an Apple. Sterling, 2007.

警告：这些引文格式不一定是100％准确.