APA (7th ed.) Citation

Salway, P. (1965). The frontier people of Roman Britian. University Press.

Chicago Style (17th ed.) Citation

Salway, Peter. The Frontier People of Roman Britian. Cambridge: University Press, 1965.

MLA (9th ed.) Citation

Salway, Peter. The Frontier People of Roman Britian. University Press, 1965.