APA (7th ed.) Citation

Reichenbach, H., & Reichenbach, M. (1956). The direction of time. Dover.

Chicago Style (17th ed.) Citation

Reichenbach, Hans, and Maria Reichenbach. The Direction of Time. Mineola, N.Y.: Dover, 1956.

MLA (8th ed.) Citation

Reichenbach, Hans, and Maria Reichenbach. The Direction of Time. Dover, 1956.

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