APA-ийн эшлэл(7 дахь хэвлэлт)

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.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

ebrary, Inc, ба 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.

MLA -ийн эшлэл (9 дэх хэвлэлт)

ebrary, Inc, ба Michael Joachim Bonell. The UNIDROIT Principles in Practice: Caselaw and Bibliography on the UNIDROIT Principles of International Commercial Contracts. 2nd ed. Transnational Publishers, 2006.