Makin, G. (2000). The metaphysicians of meaning: Russell and Frege on sense and denotation. Routledge.

Makin, Gideon. The Metaphysicians of Meaning: Russell and Frege on Sense and Denotation. London ; New York: Routledge, 2000.

Makin, Gideon. The Metaphysicians of Meaning: Russell and Frege on Sense and Denotation. Routledge, 2000.