Symonds, M. F. A., & Hill, P. R. (2013). Gateways or garrisons? Designing, building, and manning the milecastles.
Chicago Style (17th ed.) CitationSymonds, Matthew F. A., and P. R. Hill. Gateways or Garrisons? Designing, Building, and Manning the Milecastles. 2013.
MLA (9th ed.) CitationSymonds, Matthew F. A., and P. R. Hill. Gateways or Garrisons? Designing, Building, and Manning the Milecastles. 2013.
Warning: These citations may not always be 100% accurate.