Nichols Paul Social suryey methods A fieldguiode for development workers - New Delhi The Publisher India 2009 - xii, 148p. cm. ISBN: 9788190358026 (hbk) 525 Standard No.: 239,946 Source: 006, 02/09/2009, Independent Publishers Group Textual Subjects--Topical Terms: SOCIAL SCIENCES Dewey Class. No.: Sigma:f, P9