For Halicarnassus and Cnidos, see Arnold W. Lawrence, Greek Architecture (Middlesex, England: Harmondsworth, 1983), pp. 253 and 255; for Belevi, see Theodore Fyfe, Hellenistic Architecture: An Introductory Study (Cambridge, UK: University Press, 1936), p. 52; for Xanthos, see Fedak, Monumental Tombs, pp. 296–297.