"Emigració i immigració" . . "Emigració i immigració." . "États-Unis" . . . . "The immigration debate : studies on the economic, demographic, and fiscal effects of immigration" . . . . . . . . . . . "The Immigration debate studies on the economic, demographic, and fiscal effects of immigration" . . . . "The Immigration debate : studies on the economic, demographic, and fiscal effects of immigration" . . . . . . . . . . . . . "Electronic books"@en . . . "Case studies"@en . "Case studies" . . . . . . "Aufsatzsammlung" . . . . "Llibres electrònics" . . . . . . "The immigration debate studies on the economic, demographic, and fiscal effects of immigration"@en . "The immigration debate studies on the economic, demographic, and fiscal effects of immigration" . "BUSINESS & ECONOMICS Economics Comparative." . . "Condicions econòmiques." . . "Estats Units d'Amèrica." . . "USA" . . "United States" . . "Estudi de casos." . . "Einwanderung" . . "Einwanderung." . "POLITICAL SCIENCE Economic Conditions." . . "Einwanderung Öffentlicher Haushalt Arbeitsmarkt Bevölkerungsentwicklung Wohlfahrtseffekt USA." . . "Stany Zjednoczone" . . "BUSINESS & ECONOMICS Economic Conditions." . . "Estados Unidos" . . . . "Arbeitsmarkt" . . "Wirtschaft." . . "National Research Council (États-Unis). Panel on the Demographic and Economic Impacts of Immigration." . . "Bevölkerungsentwicklung" . . "USA." . . "Öffentlicher Haushalt" . . "BUSINESS & ECONOMICS Economic History." . . "Bevölkerung." . . "00.09.1996." . . "00.09.1996" . "Wohlfahrtsanalyse" . . "Aufsatzsammlung." . .