title: [The discourse on immigration in the early 20th century: a nationalist    strategy of selective immigration].
authors: R
authors: R
authors: Soto
mesh_terms: D003364:Costa Rica / Q000208:ethnology; D018864:Cultural Diversity; D054242:Emigrants and Immigrants / Q000193:education / Q000266:history / Q000331:legislation & jurisprudence / Q000523:psychology; D004641:Emigration and Immigration / Q000266:history / Q000331:legislation & jurisprudence; D049673:History, 20th Century; D011287:Prejudice; D011822:Race Relations / Q000266:history / Q000331:legislation & jurisprudence / Q000523:psychology; D011049:Social Control Policies / Q000191:economics / Q000266:history / Q000331:legislation & jurisprudence; D012940:Social Problems / Q000191:economics / Q000208:ethnology / Q000266:history / Q000331:legislation & jurisprudence / Q000523:psychology; D014171:Transients and Migrants / Q000193:education / Q000266:history / Q000331:legislation & jurisprudence / Q000523:psychology