APA
Vogenauer Stefan, Kleinheisterkamp Jan, . (2009). Commentary on the UNIDROIT Principles of International Commercial Contracts. Oxford: Oxford University Press.
Chicago
Vogenauer Stefan, Kleinheisterkamp Jan, . 2009. Commentary on the UNIDROIT Principles of International Commercial Contracts. Oxford: Oxford University Press.
Harvard
Vogenauer Stefan, Kleinheisterkamp Jan, . (2009). Commentary on the UNIDROIT Principles of International Commercial Contracts. Oxford: Oxford University Press.
MLA
Vogenauer Stefan, Kleinheisterkamp Jan, . Commentary on the UNIDROIT Principles of International Commercial Contracts. Oxford: Oxford University Press. 2009.