APA-ийн эшлэл(7 дахь хэвлэлт)

Carl, W. (1994). Frege's Theory of Sense and Reference: Its origins and scope. Univ. Pr..

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

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

MLA -ийн эшлэл (9 дэх хэвлэлт)

Carl, Wolfgang. Frege's Theory of Sense and Reference: Its Origins and Scope. Univ. Pr., 1994.