توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)
Symposium on Tense and Aspect University of California, Los Angeles, ebrary, Inc, & Hopper, P. J. (1982). Tense-aspect: Between semantics & pragmatics : containing the contributions to a Symposium on Tense and Aspect, held at UCLA, May 1979. J. Benjamins Pub. Co..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)
Symposium on Tense and Aspect University of California, Los Angeles, Inc ebrary, و Paul J. Hopper. Tense-aspect: Between Semantics & Pragmatics : Containing the Contributions to a Symposium on Tense and Aspect, Held at UCLA, May 1979. Amsterdam ; Philadelphia: J. Benjamins Pub. Co., 1982.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)
Symposium on Tense and Aspect University of California, Los Angeles, et al. Tense-aspect: Between Semantics & Pragmatics : Containing the Contributions to a Symposium on Tense and Aspect, Held at UCLA, May 1979. J. Benjamins Pub. Co., 1982.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.