APA (7th ed.) Citation

Orth, S. P. (2011). Socialism and Democracy in Europe. Project Gutenberg.

Chicago Style (17th ed.) Citation

Orth, Samuel Peter. Socialism and Democracy in Europe. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Orth, Samuel Peter. Socialism and Democracy in Europe. Project Gutenberg, 2011.

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