Survey concerning public opinion regarding the unification of Europe. Themes: Most important problems for one's country: domestic, agriculture, labour market, economy, standard of living, housing, education, world peace, European unity / Being abroad, travelling, countries one has visited / European unification: involvement with it, expectations regarding it's realization, expected time of realization, favouring or disapproving unification, reasons for being in favour: abolition of war, fight against communism, third power formation, bare survival of small states, economic advantages, improving standard of living, socio-political and cultural integration, historical trend, solidarity of rich and poor, scientific efficiency / Expected risks or dangers: internal tensions, dominance of certain states, cultural differences, loss of independence, economic problems, industrial relations damaged / Agreements, institutions and treaties known to respondent: European Common Market, Euratom, Coal and Steel Community, Agricultural agreement, Brussel's agreement, European Defense Community, Benelux and others / Most important issues for European community at present: entry of Great Britain, joining by other countries, agricultural policy, common market formation, adjustment of wages, differences of opinion, east-west relations, political unification, colonial relationships / Media through which respondent stays informed about these matters / Achievements regarding unification: tariffs, borders, labour mobility, trade, industrial cooperation, traffic & transport, scientific & cultural exchange, agriculture, contacts politicians, defense cooperation / Perceived effects of European cooperation / Memberhip of EC advantageous or not and for which social groups specifically / Preference regarding several policy alternatives: abolition of tariffs, labour mobility, harmonizing educational qualifications, joint foreign policy, joint scientific research, agricultural policy, harmonized social benefits, support for poor regions, helping african countries / Are they already provided for? / Main purpose of united Europe / Knowledge of foreign languages / Extra background variables for Germany only: social status, household size, marital status, religious denomination and refugee status. Background variables: basic characteristics/ residence/ household characteristics/ occupation/employment/ income/capital assets/ education/ politics