APA (7th ed.) Citation

Frye, R. N., & Curtis, J. (2010). Cyrus the Mede and Darius the Achaemenid?

Chicago Style (17th ed.) Citation

Frye, Richard Nelson, and J. Curtis. Cyrus the Mede and Darius the Achaemenid? 2010.

MLA (8th ed.) Citation

Frye, Richard Nelson, and J. Curtis. Cyrus the Mede and Darius the Achaemenid? 2010.

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