On Ayn Rand
Allan Gotthelf
Metaethics, Egoism, and Virtue: Studies in Ayn Rand's Normative ...
Concepts and Their Role in Knowledge: Reflections on Objectivist ...
Allan Gotthelf & James G. Lennox
A Companion to Ayn Rand
Allan Gotthelf & Gregory Salmieri
Blackwell Companions to Philosophy (1)