APA (7th ed.) Zitazioa
Couch, S., Felstehausen, G., & Hallman, P. S. (1997). Skills for life. West Pub. Co..
Chicago Style (17th ed.) Zitazioa
Couch, Sue, Ginny Felstehausen, eta Patsy Spurrier Hallman. Skills for Life. Minneapolis/St. Paul: West Pub. Co., 1997.
MLA (9th ed.) Zitazioa
Couch, Sue, et al. Skills for Life. West Pub. Co., 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.