APA (7th ed.) Citation

Frege, G., Hermes, H., Kambartel, F., & Kaulbach, F. (1979). Posthumous writings. University of Chicago Press.

Chicago Style (17th ed.) Citation

Frege, Gottlob, Hans Hermes, Friedrich Kambartel, and Friedrich Kaulbach. Posthumous Writings. Chicago: University of Chicago Press, 1979.

MLA (9th ed.) Citation

Frege, Gottlob, et al. Posthumous Writings. University of Chicago Press, 1979.