APA (7th ed.) Zitazioa
Callaway, J., & Callaway, J. (2012). Clients first: The two word miracle. Wiley.
Chicago Style (17th ed.) Zitazioa
Callaway, Joseph, eta JoAnn Callaway. Clients First: The Two Word Miracle. Hoboken, N.J.: Wiley, 2012.
MLA (9th ed.) Zitazioa
Callaway, Joseph, eta JoAnn Callaway. Clients First: The Two Word Miracle. Wiley, 2012.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.