Kahn, Miriam B. Protecting your library`s digital sources : the essential guide to planning and preservation / by Miriam B. Kahn. - / . - New Delhi : Ess Ess Publications , 2010. - 104p. : ills. ; 28cm 1 CD . Includes index ISBN: 9788170005926 RS700.00 Subjects--Index Terms: LIBRARY AND INFORMATION SCIENCE Dewey Class. No.: 025.8 / KAH/P