APA
Klabbers J., . (2009). The Constitutionalization of International Law. New York: Oxford University Press.
Chicago
Klabbers Jan, . 2009. The Constitutionalization of International Law. New York: Oxford University Press.
Harvard
Klabbers J., . (2009). The Constitutionalization of International Law. New York: Oxford University Press.
MLA
Klabbers Jan, . The Constitutionalization of International Law. New York: Oxford University Press. 2009.