Endicott, K. M., & Welsch, R. L. (2005). Taking sides (3rd ed.). McGraw-Hill/Dushkin.
Chicago Style aipamenaEndicott, Kirk M., and Robert Louis Welsch. Taking Sides. 3rd ed. Dubuque: McGraw-Hill/Dushkin, 2005.
MLA aipamenaEndicott, Kirk M., and Robert Louis Welsch. Taking Sides. 3rd ed. McGraw-Hill/Dushkin, 2005.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.