APA (7th ed.) Citation

Ludwig, K. (1997). Theophilus Presbyter.

Chicago Style (17th ed.) Citation

Ludwig, Karl-Heinz. Theophilus Presbyter. 1997.

MLA (9th ed.) Citation

Ludwig, Karl-Heinz. Theophilus Presbyter. 1997.

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