TY - BOOK AU - Lewis,G.J. TI - Human migration: : a geographical perspectives T2 - (Croom Helm Series in Geography and Environment) SN - 0-7099-0007-4 AV - HB1951.L3 PY - 1982/// CY - London PB - Croom Helm KW - Migration Internal KW - Emigration and immigration N1 - Includes bibliographical references ER -