Sehgal R. L. Applied statistics for library science research - Delhi Ess Ess Publishing India 1998 ISBN: 5100 Standard No.: 232,730 Source: 11501, 16/01/2008, Overseas Press Textual Subjects--Topical Terms: LIBRARY SCIENCE Dewey Class. No.: 2:(B28), N8.1-.2;2-;4 (2D)