Puerto Ricans Portoricains 69 History 48 Social conditions 48 SOCIAL SCIENCE 42 General 28 Histoire 28 Conditions sociales 26 Ethnic identity 24 Discrimination & Race Relations 23 Minority Studies 23 Politics and government 23 Ethnic relations 22 HISTORY 19 Identité ethnique 17 Ethnic Studies 14 Anthropology 13 Cultural 13 Intellectual life 13 Social life and customs 13 Emigration and immigration 12 History and criticism 11 LITERARY CRITICISM 11 Migrations 11 Social aspects 11 Mexican Americans 10 Economic conditions 9 Émigration et immigration 9 Race relations 9 Relations 9