Information needs analysis : principles and practice in information organizations / Daniel G. Dorner, G.E. Gorman and Philip J. Calvert. Principles and practice in information organizations Dorner, Daniel G., Gorman, G. E., Calvert, Philip J., Information services. Needs assessment. ZA3157 .D67 2015 025.52 23 DOI Includes bibliographical references and index. 2015 Text xvii, 269 p. : eng