ebrary, Inc, & Bonell, M. J. (2006). The UNIDROIT principles in practice: Caselaw and bibliography on the UNIDROIT principles of international commercial contracts (2nd ed.). Transnational Publishers.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)ebrary, Inc, و Michael Joachim Bonell. The UNIDROIT Principles in Practice: Caselaw and Bibliography on the UNIDROIT Principles of International Commercial Contracts. 2nd ed. Ardsley, N.Y.: Transnational Publishers, 2006.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)ebrary, Inc, و Michael Joachim Bonell. The UNIDROIT Principles in Practice: Caselaw and Bibliography on the UNIDROIT Principles of International Commercial Contracts. 2nd ed. Transnational Publishers, 2006.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.