APA (7th ed.) Citation

Degas, E., & Guerin, M. e. (1947). Letters. Cassirer.

Chicago Style (17th ed.) Citation

Degas, Edgar, and Marcel editor Guerin. Letters. Oxford: Cassirer, 1947.

MLA (9th ed.) Citation

Degas, Edgar, and Marcel editor Guerin. Letters. Cassirer, 1947.

Warning: These citations may not always be 100% accurate.