Proceedings and final report of the International Seminar on the Improvement of Housing Conditions and the Rehabilitation of Historic Centres : 10-22 September 1990, IAA "Santo Kiriko" Creativity Centre, Assenovgrad, Bulgaria. - International Seminar on the Improvement of Housing Conditions and the Rehabilitation of Historic Centres (1990 : IAA "Santo Kiriko" Creativity Centre); United Nations Centre for Human Settlements; Bulgaria; International Academy of Architecture (Nairobi : United Nations Centre for Human Settlements (Habitat), 1991)
At head of title: The Government of the People's Republic of Bulgaria, The International Academy of Architecture.
"HS/216/90E"--T.p. verso.
Keywords: Historic districts -- Congresses; Historic preservation -- Congresses