Kelsen, H., & Paulson, B. L. (1992). Introduction to the problems of legal theory: A translation of the first edition of the Reine Rechtslehre or Pure theory of law (Edition.). Clarendon Press.
Čikaški stil citiranja (17. izdanje)Kelsen, Hans, i Bonnie Litsschewski Paulson. Introduction to the Problems of Legal Theory: A Translation of the First Edition of the Reine Rechtslehre or Pure Theory of Law. Edition. Oxford: Clarendon Press, 1992.
MLA način citiranja (9. izdanje)Kelsen, Hans, i Bonnie Litsschewski Paulson. Introduction to the Problems of Legal Theory: A Translation of the First Edition of the Reine Rechtslehre or Pure Theory of Law. Edition. Clarendon Press, 1992.
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