Davis, Langdon, and Everest (Firm). Spon's Mechanical and electrical services price book 1992 [Books]. edited by Davis Langdon and Everest. - 23th ed. - London E. & F. N. Spon 1991 - Pages: 729 Notes Registration No: 24265 (1al) Serials holdings Stg 55.00 ISBN: 0419173706 0.00 Subjects--Personal Names: Buildings -- Electric equipment -- Estimates -- Great Britain -- Periodicals.Buildings -- Mechanical equipment -- Estimates -- Great Britain -- Periodicals. Dewey Class. No.: REF TH/6010 / SPO