توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

University of Texas at Austin. Dept. of Germanic Languages & Willson, A. L. (1971). A Günter Grass symposium. Published for the Department of Germanic Languages, University of Texas at Austin, by the University of Texas Press.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

University of Texas at Austin. Dept. of Germanic Languages و A. Leslie Willson. A Günter Grass Symposium. Austin: Published for the Department of Germanic Languages, University of Texas at Austin, by the University of Texas Press, 1971.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

University of Texas at Austin. Dept. of Germanic Languages و A. Leslie Willson. A Günter Grass Symposium. Published for the Department of Germanic Languages, University of Texas at Austin, by the University of Texas Press, 1971.