APA (7th ed.) Citation

Ward, L. (2011). Forty Years of 'Spy'. Project Gutenberg.

Chicago Style (17th ed.) Citation

Ward, Leslie. Forty Years of 'Spy'. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Ward, Leslie. Forty Years of 'Spy'. Project Gutenberg, 2011.

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