Стиль цитування APA (7-ме видання)

Higgins, R. (2009). Themes and theories: Selected essays, speeches, and writings in international law. Oxford University Press.

Чикаго стиль цитування (17-те видання)

Higgins, Rosalyn. Themes and Theories: Selected Essays, Speeches, and Writings in International Law. Oxford ; New York: Oxford University Press, 2009.

Стиль цитування MLA (8-ме видання)

Higgins, Rosalyn. Themes and Theories: Selected Essays, Speeches, and Writings in International Law. Oxford University Press, 2009.