Fox, M., & Argent, K. (1999). Sleepy bears (1st U.S. ed.). Harcourt Brace.
芝加哥风格引文Fox, Mem, 与 Kerry Argent. Sleepy Bears. 1st U.S. ed. San Diego: Harcourt Brace, 1999.
MLA引文Fox, Mem, 与 Kerry Argent. Sleepy Bears. 1st U.S. ed. Harcourt Brace, 1999.
警告：这些引文格式不一定是100％准确.