Preservation and rehabilitation of historic districts, towns, and monuments : proceedings and final report of the United Nations Centre for Human Settlements (Habitat) and International Academy of Architecture - International Seminar on the Preservation and Rehabilitation of Historic Districts, Towns, and Monuments in Some Developed Countries and Their Relevance to Developing Countries (1989 : Assenovgrad, Bulgaria); United Nations Centre for Human Settlements (Habitat) (Nairobi) (Nairobi, Kenya : United Nations, 1989)
Keywords: Historic districts -- Conservation and restoration -- Congresses; Historic sites -- Conservation and restoration -- Congresses; Buildings -- Maintenance; Buildings -- Repair and reconstruction