Sampath S Sampling theory and methods - 2 - New Delhi Narosa Publishing House 2001 - xii,199p cm. Bibliography: P 195-97 ISBN: 8173196257 165.75 Source: 0D00607121925B, 12/12/2011, WS RETAIL SERVICES PVT. LTD General Book Dewey Class. No.: X:(B2817), P5