APA (7th ed.) Citation

Acton, J. E. E. D. A. (2006). Lectures on Modern history. Project Gutenberg.

Chicago Style (17th ed.) Citation

Acton, John Emerich Edward Dalberg Acton. Lectures on Modern History. Project Gutenberg, 2006.

MLA (9th ed.) Citation

Acton, John Emerich Edward Dalberg Acton. Lectures on Modern History. Project Gutenberg, 2006.

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