References
- Glacken , Clarence J. 1990 . Traces on the Rhodian shore: Nature and culture in Western thought from ancient times to the end of the eighteenth century , Berkeley : University of California Press . [1967]
- Vitruvius . 1960 . De architectura, bk. 6, Introduction, and bk. 2, ch. 8, trans , Morris Hicky Morgan : New York Dover .