Emigraci?n	Inmigraci?n
Migraci?n de retorno	Within a country. Migraci?n interna
Migraci?n laboral	Nomadismo
Pol?tica migratoria

International migration ;Population migration ;Population mobility Population movement

Aculturaci?n
Phenomena which result when groups of individuals of different cultures come into continuous contact, with subsequent changes in the original cultural patterns of either or both groups.
Demograf
Use for theoretical works dealing with human populations, concerned with their size, structure, distribution, growth and migration.
Investigaci?n demogr?fica
Use for works dealing with research projects. For general works, use "demography".
Libre circulaci?n
Migrante
Nacionalidad