TY - BOOK T1 - Mechanisms of immigration control : a comparative analysis of European regulation policies A2 - Hammar, Tomas 1928- A2 - Brochmann, Grete 1957- LA - English PP - Oxford etc. PB - Berg YR - 1999 UL - https://colectivo.uloyola.es/Record/T191403 OP - 342 CN - 312.5 SN - 1-85973-272-0 KW - Migraciones ER -