Courbet, G., & Chu, P. t. (1992). Letters of Gustave Courbet: Gustave Courbet. Ed. and transl. by Petra ten-Doesschate Chu. Univ. of Chicago Press.

Courbet, Gustave, and Petra ten-Doesschate Chu. Letters of Gustave Courbet: Gustave Courbet. Ed. and Transl. by Petra Ten-Doesschate Chu. Chicago, Ill. [u.a.]: Univ. of Chicago Press, 1992.

Courbet, Gustave, and Petra ten-Doesschate Chu. Letters of Gustave Courbet: Gustave Courbet. Ed. and Transl. by Petra Ten-Doesschate Chu. Univ. of Chicago Press, 1992.