APA aipamena

JAY Silverman, & Michael Ryan. (2009). Rules of Thumb. New York: David S. Patterson.

Chicago Style aipamena

JAY Silverman, and Michael Ryan. Rules of Thumb. New York: David S. Patterson, 2009.

MLA aipamena

JAY Silverman, and Michael Ryan. Rules of Thumb. New York: David S. Patterson, 2009.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.