1.

図書
図書
1. General theory of norms
Hans Kelsen ; translated by Michael Hartney
出版情報: Oxford [England] : Clarendon Press , New York ; Tokyo : Oxford University Press, 1991
2.

図書
図書
2. The authority of law : essays on law and morality
by Joseph Raz
出版情報: Oxford : Clarendon Press, 1983, c1979