G. Rickman

Rickman, G. (1996). ‘Portus in perspective’, in A. Gallina Zevi and A. Claridge (eds), 'Roman Ostia' revisited. Rome: British School at Rome, 281–292.
Rickman, G. (1981). ‘The Grain Trade under the Roman Empire’. MAAR 36: 261–275.
Rickman, G. (1980). The Corn Supply of Ancient Rome. Oxford: Clarendon Press.
Rickman, G. (1971). Roman Granaries and Store Buildings. Cambridge: Cambridge University Press.