(PICUM), P. f. I. C. o. U. M. 469/5.1.10/00144: Dossier betreffende de workshop Irregular Migration and Informal Economy / Labour Market. Lessons from Southern and Central Eastern European Countries, georganiseerd te Londen op 2 december 2008.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)(PICUM), Platform for International Cooperation on Undocumented Migrants. 469/5.1.10/00144: Dossier Betreffende De Workshop Irregular Migration and Informal Economy / Labour Market. Lessons from Southern and Central Eastern European Countries, Georganiseerd Te Londen Op 2 December 2008.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)(PICUM), Platform for International Cooperation on Undocumented Migrants. 469/5.1.10/00144: Dossier Betreffende De Workshop Irregular Migration and Informal Economy / Labour Market. Lessons from Southern and Central Eastern European Countries, Georganiseerd Te Londen Op 2 December 2008.