Lansing, John B. Economic survey methods / [by] John B. Lansing and James N. Morga n. - [Ann Arbor, Michigan] : Survey Research Center, University of Mic higan] , 1971. - xii, 429 p. : ill. ; 23 cm. Includes bibliographical references and index LCCN: 71-633672 Subjects--Topical Terms: Economic surveys. Dewey Class. No.: 330/.072/3