APA (7th ed.) Citation

Dworkin, R. M. (1985). A matter of principle. Harvard University Press.

Chicago Style (17th ed.) Citation

Dworkin, Ronald M. A Matter of Principle. Cambridge, Mass.: Harvard University Press, 1985.

MLA (9th ed.) Citation

Dworkin, Ronald M. A Matter of Principle. Harvard University Press, 1985.