title: A comparative overview of international trends and types, 1950-80.
authors.forename: J
authors.initials: J
authors.lastname: Salt
mesh_terms: D000349:Africa; D017954:Africa South of the Sahara; D000352:Africa, Northern; D000353:Africa, Southern; D000569:Americas; D001208:Asia; D001211:Asia, Western; D002170:Canada; D017691:Caribbean Region; D003142:Communication; D003710:Demography; D019049:Developed Countries; D003906:Developing Countries; D004641:Emigration and Immigration; D005060:Europe; D005544:Forecasting; D007255:Information Services; D007843:Latin America; D009656:North America; D011153:Population; D011157:Population Dynamics; D012106:Research; D013019:South Africa; D013223:Statistics as Topic; D013597:Systems Analysis; D014171:Transients and Migrants; D014481:United States
keywords: Africa; Africa South Of The Sahara; Americas; Asia; Canada; Caribbean; Communication; Comparative Studies; Demographic Factors; Developed Countries; Developing Countries; English Speaking Africa; Estimation Technics; Europe; Illegal Migrants; Information Networks; International Migration--changes; Labor Migration--changes; Latin America; Migrants; Migration; North America; Northern Africa; Northern America; Population; Population Dynamics; Population Forecast; Research Methodology; South Africa; Southern Africa; Studies; Systems Analysis; Temporary Migration; United States; Western Asia; Western Europe