[Bulgarian immigration to the United States--a brief historical review].
D000569:Americas; D002031:Bulgaria; D003469:Culture; D003710:Demography; D019049:Developed Countries; D004641:Emigration and Immigration; D005006:Ethnicity; D005060:Europe; D005061:Europe, Eastern; D005843:Geography; D009656:North America; D011153:Population; D011154:Population Characteristics; D011157:Population Dynamics; D014481:United States
Americas; Bulgaria; Cultural Background; Demographic Factors; Developed Countries; Eastern Europe; Ethnic Groups; Europe; Geographic Factors; Historical Survey; International Migration; Migration; North America; Northern America; Population; Population Characteristics; Population Dynamics; Spatial Distribution; United States
Balgarskata imigratsiya v SASt--kratak istoricheski pregled.