Groningen Conference on the Theory of Argumentation, ebrary, Inc, Barth, E. M., & Martens, J. L. (1982). Argumentation: Approaches to theory formation : containing the contributions to the Groningen Conference on the Theory of Argumentation, October 1978. J. Benjamins.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Groningen Conference on the Theory of Argumentation, Inc ebrary, E. M. Barth, و J. L. Martens. Argumentation: Approaches to Theory Formation : Containing the Contributions to the Groningen Conference on the Theory of Argumentation, October 1978. Amsterdam: J. Benjamins, 1982.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Groningen Conference on the Theory of Argumentation, et al. Argumentation: Approaches to Theory Formation : Containing the Contributions to the Groningen Conference on the Theory of Argumentation, October 1978. J. Benjamins, 1982.