BORJAS, George J. Economic research on the determinants of immigration : lessons for the European Union. Washington, D.C. : World Bank, 1999. 27 s. World Bank technical paper, No. 438. ISBN 0-8213-4504-4. ISSN 0253-7494. [Počet ex. : 1, z toho voľných 1, prezenčne 0]