TY - BOOK AU - Hughes,Lorna M. TI - Evaluating and measuring the value, use and impact of digital collections SN - 9781856047203 (pbk.) PY - 2012/// CY - London PB - Facet Pub. KW - Digital libraries KW - Evaluation KW - Collection development KW - Electronic information resources N1 - Includes bibliographical references and index ER -