Vaughan, Liwen Statistical methods for the information professional: A practical, painless approach to understanding, using, and interpreting statistics - New Delhi: Ess Ess Publications, 2009 - xxi, 209p. ISBN: 978-81-7000-552-0 Subjects--Topical Terms: Statistics method Subjects--Index Terms: Manual calculation Universal Decimal Class. No.: D 02:519.2 / P9