1. Space, Time and Architecture. The Growth of a New Tradition, S. Giedion, Cambridge (Mass.), Harvard University Press, 1941.
2. The Interpretation of Ordinary Landscapes, J. B. Jackson, « The order of a landscape. Reason and religion in Newtonian America », in D. W. Meinig (ed.), New York, Oxford University Press, 1979, pp. 153-163.
3. FOLK HOUSING: KEY TO DIFFUSION1;KNIFFEN FRED;Annals of the Association of American Geographers,1965