In the Medical libraries we keep all copies of the last edition, but change the loan status to ordinary. We do not keep anything older.
Medical Ref Texts at Mile End. All copies of the most recent edition as One Week loan with up to two copies as reference only. Copies of earlier editions should be OWL as above.
For Business and Management, Economics, Geography, History, Politics, Biological Sciences, Chemical Sciences, Engineering, Materials and Psychologyretain all copies of the most recent previous edition in the main collection at One Week Loan.
For Study Skills, don’t keep any previous editions.