APA-ийн эшлэл(7 дахь хэвлэлт)

Gotthelf, A., & Lennox, J. G. (2013). Concepts and their role in knowledge: Reflections on objectivist epistemology. University of Pittsburgh Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Gotthelf, Allan, ба James G. Lennox. Concepts and Their Role in Knowledge: Reflections on Objectivist Epistemology. Pittsburgh, Pennsylvania: University of Pittsburgh Press, 2013.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Gotthelf, Allan, ба James G. Lennox. Concepts and Their Role in Knowledge: Reflections on Objectivist Epistemology. University of Pittsburgh Press, 2013.