APA (7th ed.) Citation

Turing, S. (1959). Alan M. Turing. Heffer.

Chicago Style (17th ed.) Citation

Turing, Sara. Alan M. Turing. Cambridge: Heffer, 1959.

MLA (9th ed.) Citation

Turing, Sara. Alan M. Turing. Heffer, 1959.

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