APA (7th ed.) Citation

Duncker, M. (2012). The History of Antiquity, Volume IV (of 6). Project Gutenberg.

Chicago Style (17th ed.) Citation

Duncker, Max. The History of Antiquity, Volume IV (of 6). Project Gutenberg, 2012.

MLA (9th ed.) Citation

Duncker, Max. The History of Antiquity, Volume IV (of 6). Project Gutenberg, 2012.

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