APA
Brownlie I., . (2008). Principles of public international law. Oxford: Oxford University Press.
Chicago
Brownlie Ian, . 2008. Principles of public international law. Oxford: Oxford University Press.
Harvard
Brownlie I., . (2008). Principles of public international law. Oxford: Oxford University Press.
MLA
Brownlie Ian, . Principles of public international law. Oxford: Oxford University Press. 2008.