Cita APA (7a ed.)
Frege, G. On the Foundations oF Geometry and Formal Theories of Arithmetic. Yale University.
Cita estilo Chicago (17a ed.)
Frege, Gottlob. On the Foundations OF Geometry and Formal Theories of Arithmetic. New Haven, EUA: Yale University.
Cita MLA (9a ed.)
Frege, Gottlob. On the Foundations OF Geometry and Formal Theories of Arithmetic. Yale University.
Precaución: Estas citas no son 100% exactas.