Grenzgebiet History 62 HISTORY 61 Histoire 61 General 57 SOCIAL SCIENCE 52 Borderlands 30 Anthropology 25 POLITICAL SCIENCE 24 Politics and government 23 Régions frontalières 22 Cultural 21 Ethnic relations 20 Relations interethniques 19 Boundaries 17 Social conditions 17 International relations 16 Relations 16 BUSINESS & ECONOMICS 15 Mexican Americans 15 Geopolitics 13 Conditions sociales 12 Politique et gouvernement 12 Discrimination & Race Relations 11 Minority Studies 11 Américains d'origine mexicaine 9 Ethnic identity 9 Grenze 9 Soziale Situation 9 Commerce 8