Seminar on "Opinion Polls" in conjunction with the World Association for Public Opinion Research--WAPOR: Bonn/Bad Godesberg (Fed. Rep. of Germany), 23rd-26th January 1980

details (USA). ISBN: 978-92-831-1064-4 ISBN-10: 92-831-1064-1 E.S.O.M.A.R · 1980