APA (7th ed.) Citation

Koestler, A., & Koestler, A. (1939). Un testament espagnol: (spanish testament). Albin Michel.

Chicago Style (17th ed.) Citation

Koestler, Arthur, and Arthur Koestler. Un Testament Espagnol: (spanish Testament). París: Albin Michel, 1939.

MLA (8th ed.) Citation

Koestler, Arthur, and Arthur Koestler. Un Testament Espagnol: (spanish Testament). Albin Michel, 1939.

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