ProQuest (Firm), Colloquium on Interrogativity, Chisholm, W., Milic, L. T., & Greppin, J. A. C. (1984). Interrogativity: A colloquium on the grammar, typology, and pragmatics of questions in seven diverse languages, Cleveland, Ohio, October 5th, 1981-May 3rd, 1982. J. Benjamins Pub. Co..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)ProQuest (Firm), Colloquium on Interrogativity, William Chisholm, Louis Tonko Milic, و John A. C. Greppin. Interrogativity: A Colloquium on the Grammar, Typology, and Pragmatics of Questions in Seven Diverse Languages, Cleveland, Ohio, October 5th, 1981-May 3rd, 1982. Amsterdam ; Philadelphia: J. Benjamins Pub. Co., 1984.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)ProQuest (Firm), et al. Interrogativity: A Colloquium on the Grammar, Typology, and Pragmatics of Questions in Seven Diverse Languages, Cleveland, Ohio, October 5th, 1981-May 3rd, 1982. J. Benjamins Pub. Co., 1984.