Verkerke, J. (2012). Contract Doctrine, Theory & Practice. CALI's eLangdell® Press.

Verkerke, J.H. Contract Doctrine, Theory & Practice. [Place of publication not identified]: CALI's eLangdell® Press, 2012.

Verkerke, J.H. Contract Doctrine, Theory & Practice. CALI's eLangdell® Press, 2012.