ঊরিহম, অ. ঈ. (1951). The Fundamental Questions of Philosophy. Routledge & Kegan Paul.
Cita Chicago (17th ed.)ঊরিহম, অ. ঈ. The Fundamental Questions of Philosophy. London: Routledge & Kegan Paul, 1951.
Cita MLA (9th ed.)ঊরিহম, অ. ঈ. The Fundamental Questions of Philosophy. Routledge & Kegan Paul, 1951.
Atenció: Aquestes cites poden no estar 100% correctes.