APA引文

Suárez Rivero, D. (2013). The enigma of Gottlob Frege. Four approaches of the theorists of the direct reference.

Citación estilo Chicago

Suárez Rivero, David. The Enigma of Gottlob Frege. Four Approaches of the Theorists of the Direct Reference. 2013.

MLA引文

Suárez Rivero, David. The Enigma of Gottlob Frege. Four Approaches of the Theorists of the Direct Reference. 2013.

警告：这些引文格式不一定是100％准确.