Megalopolises; a first definition. - Papaioannou, J. G.; Athens Center of Ekistics; Athhens Technological Organization (Athens Athens Technological Organization, 1967)
"Initially issued as Internal report RR-ACE 121 (COF) (i.ed. Research report no. 121 of the Athens Center of Ekistics within its City of the Future Research Project) on July 13th, 1967."
Keywords: Cities and towns; Metropolitan areas