APA (7th ed.) Citation

Asimov, I. (1970). Nightfall: Twenty SF stories. Rapp & Whiting.

Chicago Style (17th ed.) Citation

Asimov, Isaac. Nightfall: Twenty SF Stories. Lond.: Rapp & Whiting, 1970.

MLA (8th ed.) Citation

Asimov, Isaac. Nightfall: Twenty SF Stories. Rapp & Whiting, 1970.

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