title: Inferences concerning intermunicipio migrations in Puerto Rico: 1955-1960.
mesh_terms: D000569:Americas; D017691:Caribbean Region; D003710:Demography; D003906:Developing Countries; D004641:Emigration and Immigration; D007843:Latin America; D009656:North America; D011153:Population; D011157:Population Dynamics; D011647:Puerto Rico
keywords: Americas; Caribbean; Demographic Factors; Developing Countries; Latin America; Migration; Migration, Internal; North America; Population; Population Dynamics; Puerto Rico