APA (7th ed.) Citation

Tyler, J. M. (2012). The New Stone Age in Northern Europe. Project Gutenberg.

Chicago Style (17th ed.) Citation

Tyler, John M. The New Stone Age in Northern Europe. Project Gutenberg, 2012.

MLA (9th ed.) Citation

Tyler, John M. The New Stone Age in Northern Europe. Project Gutenberg, 2012.

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