Libri di prehistoric fortification

The roundhouses, brochs and wheelhouses of Atlantic Scotland, c. 700 BC - AD 500

Hillforts of England and Wales

The tatooed land

Archaeological excavations of fortified sites on Taveuni, Fiji

War before civilization

Les "Viereckschanzen" et les enceintes quadrilatérales en Europe celtique

The Complex Roundhouses of the Scottish Iron Age, Volume I

Monumentality in Later Prehistory

Celtic Fortifications