APA (7th ed.) Citation

Birley, E. (1987). Ballista and "Trebellius Pollio".

Chicago Style (17th ed.) Citation

Birley, Eric. Ballista and "Trebellius Pollio". 1987.

MLA (9th ed.) Citation

Birley, Eric. Ballista and "Trebellius Pollio". 1987.

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