http://41.89.164.26/cgi-bin/koha/opac-search.pl?q=ccl=su%3A%22Historic%20districts%22&sort_by=relevance&format=rss 2 0 50 ISBN:9211311365 http://41.89.164.26/cgi-bin/koha/opac-detail.pl?biblionumber=14463 Nairobi : United Nations Centre for Human Settlements (Habitat) 1991 .
68 p. : , At head of title: The Government of the People's Republic of Bulgaria, The International Academy of Architecture. | "HS/216/90E"--T.p. verso. 21 cm..
9211311365

]]> Place hold on Proceedings and final report of the International Seminar on the Improvement of Housing Conditions and the Rehabilitation of Historic Centres :

]]> http://41.89.164.26/cgi-bin/koha/opac-detail.pl?biblionumber=14463 ISBN: http://41.89.164.26/cgi-bin/koha/opac-detail.pl?biblionumber=15538 [Nairobi, Kenya] : United Nations Centre for Human Settlements (Habitat), 1989 .
93 p. : , "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, 1-15 November 1989, IAA Santo Kiriko Creativity Centry, Assenovgrad, Bulgaria." | "HS/207/90E"--T.p. verso. 21 cm..

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