APA

Royal Institute of Philosophy, British Institute of Philosophy & British Institute of Philosophical Studies. (1931). Philosophy. Cambridge [u.a.]: Cambridge Univ. Press.

Chicago

Royal Institute of Philosophy, British Institute of Philosophy and British Institute of Philosophical Studies. 1931. Philosophy. Cambridge [u.a.]: Cambridge Univ. Press.

Harvard

Royal Institute of Philosophy, British Institute of Philosophy and British Institute of Philosophical Studies. (1931). Philosophy. Cambridge [u.a.]: Cambridge Univ. Press.

MLA

Royal Institute of Philosophy, British Institute of Philosophy and British Institute of Philosophical Studies. Philosophy. Cambridge [u.a.]: Cambridge Univ. Press. 1931.