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• Evolution of Mathematical Concepts (Set books) by R.L. Wilder Open University Press Hardcover 15 November 1978 from£12.13 | RRP: £9.99
• Dictionary of German Synonyms by R. B. Farrell Cambridge University Press Hardcover 31 August 1971 from£11.47 | RRP: £8.5
• The Population History of Britain and Ireland, 1500-1750 (Studies in economic & social history) by R.A. Houston Palgrave Macmillan Paperback 1 November 1991 from£64.86 | RRP: £6.25
• A Concise Anglo-Saxon Dictionary: For the Use of Students (1916) by John R. Clark Hall Kessinger Publishing Paperback 1 June 2008 from£33.67 | RRP: £21.92
• Emerging Empire: A Pictorial History 1689 - 1763 by R J Unstead Prentice Hall & IBD Library Binding 1 October 1972 from£8.03 | RRP: £5.99
• Concise Chemical Thermodynamics by J R Warn Van Nost. Reinhold Paperback from£N/A | RRP: £9.95
• Chronology of the Medieval World, 800-1491 by R.L. Storey Barrie & Jenkins Hardcover 25 January 1973 from£9.45 | RRP: £7.5
• The Return of the Armadas: The Last Years of the Elizabethan War against Spain 1595-1603 by R. B. Wernham Clarendon Press Hardcover 31 March 1994 from£182.08 | RRP: £100
• Memories and Machines by Sir Harry R. Ricardo Constable Hardcover 1 September 1968 from£N/A | RRP: £2.5
• Red Water (Gunsmith (Jove Books)) by J. R. Roberts Jove Books Paperback 30 December 2008 from£6.30 | RRP: £4.06
• Electric Motor Control Fundamentals by R.L. McIntyre McGraw-Hill Inc.,US Hardcover 1 June 1974 from£88.14 | RRP: £39.95
• Metropolitan Migrants: The Migration of Urban Mexicans to the United States by R Hernandez-Leon University of California Press Paperback 22 August 2008 from£13.95 | RRP: £14.95
• Dark Lover: A Novel of the Black Dagger Brotherhood by J. R. Ward Signet Book Mass Market Paperback 1 October 2007 from£87.53 | RRP: £3.31
• Energy Technology and Directions for the Future by John R. Fanchi PhD Academic Press Hardcover 23 February 2004 from£62.98 | RRP: £52.99
• International History of the Vietnam War: The Kennedy Strategy: 2 by R. B. Smith Palgrave Macmillan Hardcover 1 May 1986 from£29.51 | RRP: £19.88
• The Structure of Turbulent Shear Flow (Cambridge Monographs on Mechanics) by A. A. R. Townsend Cambridge University Press Paperback 6 March 1980 from£40.80 | RRP: £45
• Chemical Experiments (Pegasus Books) by R.H. Warring Dobson Books Ltd Paperback 1 September 1974 from£8.03 | RRP: £5.95
• Chinese (Teach Yourself) by H.R. Williamson Hodder & Stoughton Ltd Hardcover 1 November 1973 from£66.82 | RRP: £2.5
• What Machines Can't Do: Politics and Technology in the Industrial Enterprise by R J Thomas University of California Press Paperback 13 May 1994 from£28.99 | RRP: £17.95
• Nietzsche: The Man and his Philosophy by R. J. Hollingdale Cambridge University Press Hardcover 28 April 1999 from£87.83 | RRP: £65
• T'ao Yüan-ming: Volume 2, Additional Commentary, Notes and Biography: His Works and their Meaning: Additional Commentary, Notes and Biography v. 2 ... Chinese History, Literature and Institutions) by A. R. Davis Cambridge University Press Paperback 19 March 2009 from£36.50 | RRP: £17.99
• The Proclamations of the Tudor Kings by R. W. Heinze Cambridge University Press Paperback 14 October 2008 from£47.00 | RRP: £22.99
• Complete Guide O Level Chemistry by J G R Briggs Longman Paperback 24 January 2006 from£8.77 | RRP: £6.25
• Mechanics of Materials by R.C. Hibbeler Macmillan USA Hardcover 10 March 1994 from£43.66 | RRP: £26.95
• Harrison's Principles of Internal Medicine by T.R. Harrison McGraw-Hill Professional Hardcover 1 December 1990 from£38.47 | RRP: £28.5