APA (7th ed.) Citation

Arendt, H., Heidegger, M., Ludz, U., & Shields, A. (2004). Letters: 1925-1975. Harcourt.

Chicago Style (17th ed.) Citation

Arendt, Hannah, Martin Heidegger, Ursula Ludz, and Andrew Shields. Letters: 1925-1975. Orlando ; Austin ; New York ; San Diego ; Toronto ; London: Harcourt, 2004.

MLA (8th ed.) Citation

Arendt, Hannah, et al. Letters: 1925-1975. Harcourt, 2004.