APA (7th ed.) Citation

Menzel, W., & Horrocks, G. (2005). Germany from the Earliest Period, Volume 4. Project Gutenberg.

Chicago Style (17th ed.) Citation

Menzel, Wolfgang, and George Horrocks. Germany from the Earliest Period, Volume 4. Project Gutenberg, 2005.

MLA (9th ed.) Citation

Menzel, Wolfgang, and George Horrocks. Germany from the Earliest Period, Volume 4. Project Gutenberg, 2005.

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