APA (7th ed.) Citation

Retief, F. P., & Cilliers, L. The epidemic of Justinian (AD 542): A prelude to the Middle Ages. University of the Free State.

Chicago Style (17th ed.) Citation

Retief, Francois P., and Louise Cilliers. The Epidemic of Justinian (AD 542): A Prelude to the Middle Ages. University of the Free State.

MLA (9th ed.) Citation

Retief, Francois P., and Louise Cilliers. The Epidemic of Justinian (AD 542): A Prelude to the Middle Ages. University of the Free State.

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