APA aipamena

Ruiz Don Miguel. (1997). Four Agreements. Amber -Allen Publishing.

Chicago Style aipamena

Ruiz Don Miguel. Four Agreements. Amber -Allen Publishing, 1997.

MLA aipamena

Ruiz Don Miguel. Four Agreements. Amber -Allen Publishing, 1997.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.