(1930). The review of metaphysics: A philosophical quarterly. Philosophy Education Soc..
Chicago-Zitierstil (17. Ausg.)The Review of Metaphysics: A Philosophical Quarterly. Washington: Philosophy Education Soc., 1930.
MLA-Zitierstil (8. Ausg.)The Review of Metaphysics: A Philosophical Quarterly. Philosophy Education Soc., 1930.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.