APA (7 वां संस्करण) प्रशस्ति पत्र

Oser, D. (2008). The UNIDROIT principles of international commercial contracts: A governing law? Martinus Nijhoff Publishers.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Oser, David. The UNIDROIT Principles of International Commercial Contracts: A Governing Law? Leiden: Martinus Nijhoff Publishers, 2008.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Oser, David. The UNIDROIT Principles of International Commercial Contracts: A Governing Law? Martinus Nijhoff Publishers, 2008.