APA (7th ed.) Citation

Sagan, F., & Ash, I. (1961). Those without shadows. Penguin.

Chicago Style (17th ed.) Citation

Sagan, Françoise, and Irene Ash. Those Without Shadows. Harmondsworth: Penguin, 1961.

MLA (9th ed.) Citation

Sagan, Françoise, and Irene Ash. Those Without Shadows. Penguin, 1961.

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