APA
Brownlie I., x, . (1990). Principles of Publice international Law. Oxford: ELBS University Press.
Chicago
Brownlie Ian, x, . 1990. Principles of Publice international Law. Oxford: ELBS University Press.
Harvard
Brownlie I., x, . (1990). Principles of Publice international Law. Oxford: ELBS University Press.
MLA
Brownlie Ian, x, . Principles of Publice international Law. Oxford: ELBS University Press. 1990.