APA (7th ed.) Citation

Ritchie, W. (1940). John Gutenberg, 1440-1940: A fanciful story of the 15th Century. Ward Ritchie.

Chicago Style (17th ed.) Citation

Ritchie, Ward. John Gutenberg, 1440-1940: A Fanciful Story of the 15th Century. Los Angeles: Ward Ritchie, 1940.

MLA (9th ed.) Citation

Ritchie, Ward. John Gutenberg, 1440-1940: A Fanciful Story of the 15th Century. Ward Ritchie, 1940.

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