APA (7th ed.) Citation

Williams, R. M. (1971). Now comes tomorrow: Science fiction. Sidgwick and Jackson.

Chicago Style (17th ed.) Citation

Williams, Robert Moore. Now Comes Tomorrow: Science Fiction. London: Sidgwick and Jackson, 1971.

MLA (8th ed.) Citation

Williams, Robert Moore. Now Comes Tomorrow: Science Fiction. Sidgwick and Jackson, 1971.

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