Digital libraries and digitization / Gurdev Singh, M.A. (Economics), MLISc; Ph.D. (DU) Librarian, Sri guru Gobind Singh College of Commerce University of Delhi, Pitampura, Delhi-34. Singh, Gurdev. Digital libraries. Digital media. Electronic publications. 025.042 SDI Includes bibliographical references and index. 2011 Text xxi, 666 p : eng