Alexy, R., Adler, R., & MacCormick, N. (1989). A theory of legal argumentation: The theory of rational discourse as theory of a legal justification. Clarendon Press.
Chicago Style (17th ed.) CitationAlexy, Robert, Ruth Adler, and Neil MacCormick. A Theory of Legal Argumentation: The Theory of Rational Discourse as Theory of a Legal Justification. Oxford: Clarendon Press, 1989.
MLA (9th ed.) CitationAlexy, Robert, et al. A Theory of Legal Argumentation: The Theory of Rational Discourse as Theory of a Legal Justification. Clarendon Press, 1989.
Warning: These citations may not always be 100% accurate.