APA
Halpin Andrew, Roeben Volker, . (2009). Theorising the global legal order. Oxford: Hart Publishing.
Chicago
Halpin Andrew, Roeben Volker, . 2009. Theorising the global legal order. Oxford: Hart Publishing.
Harvard
Halpin Andrew, Roeben Volker, . (2009). Theorising the global legal order. Oxford: Hart Publishing.
MLA
Halpin Andrew, Roeben Volker, . Theorising the global legal order. Oxford: Hart Publishing. 2009.