APA (7th ed.) Citation

Warner, S., & Harper, J. (2005). Only Emma (1. publ.). Viking.

Chicago Style (17th ed.) Citation

Warner, Sally, and Jamie Harper. Only Emma. 1. publ. New York, NY [u.a.]: Viking, 2005.

MLA (9th ed.) Citation

Warner, Sally, and Jamie Harper. Only Emma. 1. publ. Viking, 2005.