TY - BOOK AU - Kahn, Miriam B. TI - Protecting your library's digital sources: : The essential guide to planning and preservation SN - 9788170005926 U1 - 025.82 PY - 2010/// CY - New Delhi: PB - Ess Ess Publications, KW - Computer operations KW - Digital sources KW - Library science KW - Protecting data ER -