Before revision: Roman architect Vitruvius' theories have claimed the first form of architecture as a frame of timber branches finished in mud, also known as the primitive hut.Hill, Jonathan, “Immaterial Architecture” , New York: Routledge, 2006.
After revision: Roman architect Vitruvius' theories have claimed the first form of architecture as a frame of timber branches finished in mud, also known as the primitive hut.Hill, Jonathan, "Immaterial Architecture" , New York: Routledge, 2006.