APA引文

Numeroff, L. J., & McPhail, D. (2006). When sheep sleep. Abrams Books for Young Readers.

Chicago Style (17th ed.) Citation

Numeroff, Laura Joffe, and David McPhail. When Sheep Sleep. New York: Abrams Books for Young Readers, 2006.

MLA引文

Numeroff, Laura Joffe, and David McPhail. When Sheep Sleep. Abrams Books for Young Readers, 2006.