APA (7th ed.) Citation

Freytag, F. A. (1840). [De duello].

Chicago Style (17th ed.) Citation

Freytag, Franz Albert. [De Duello]. Heidelbergae, 1840.

MLA (9th ed.) Citation

Freytag, Franz Albert. [De Duello]. 1840.

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