توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

By Krushkal Samuil L. & Edited by Kra Irving. (1979). Quasiconformal mapping and riemann surfaces: By Samuil L. Krushkal ,ed by Irving Kra. V. H. Winston.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

By Krushkal Samuil L. و Edited by Kra Irving. Quasiconformal Mapping and Riemann Surfaces: By Samuil L. Krushkal ,ed by Irving Kra. Washington , D. C.: V. H. Winston, 1979.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

By Krushkal Samuil L. و Edited by Kra Irving. Quasiconformal Mapping and Riemann Surfaces: By Samuil L. Krushkal ,ed by Irving Kra. V. H. Winston, 1979.