Παραπομπή σε μορφή APA (7η εκδ.)

Carl, W. (1994). Frege's theory of sense and reference: Its origins and scope. Cambridge University Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Carl, Wolfgang. Frege's Theory of Sense and Reference: Its Origins and Scope. Cambridge: Cambridge University Press, 1994.

Παραπομπή σε μορφή MLA (8th εκδ.)

Carl, Wolfgang. Frege's Theory of Sense and Reference: Its Origins and Scope. Cambridge University Press, 1994.