APA (7th ed.) Citation

Hay, J. S. B. The Amazing Emperor Heliogabalus.

Chicago Style (17th ed.) Citation

Hay, John Stuart; Bury. The Amazing Emperor Heliogabalus.

MLA (9th ed.) Citation

Hay, John Stuart; Bury. The Amazing Emperor Heliogabalus.

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