ZIEGELMUELLER, G. W. (1997). Argumentation Inquairy & Advocacy George W. Zeigelmueller, Jack Kay. Boston.
Chicago Style aipamenaZIEGELMUELLER, George W. Argumentation Inquairy & Advocacy George W. Zeigelmueller, Jack Kay. Boston, 1997.
MLA aipamenaZIEGELMUELLER, George W. Argumentation Inquairy & Advocacy George W. Zeigelmueller, Jack Kay. Boston, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.