Catálogos de Bibliotecas 153

PETROLEUM INDUSTRY AND TRADE HISTORY 34 POLITICAL ASPECTS 22 GOVERNMENT POLICY 18 POLITICS AND GOVERNMENT 16 INDUSTRIA Y COMERCIO 15 ENERGY POLICY 12 INDUSTRIA PETROLERA 12 PETRÓLEO 12 PETR�OLEO 12 GOVERNMENT OWNERSHIP 10 PETROLEUM 10 HISTORIA 8 POWER RESOURCES 7 ECONOMIC CONDITIONS 6 DEMOCRACY 5 ECONOMIC POLICY 5 FINANCE 5 NATURAL GAS 5 PETROLEUM LAW AND LEGISLATION 5 PETROLEUM RESERVES 5 SOCIAL ASPECTS 5 ASPECTOS POLÍTICOS 4 ASPECTOS SOCIALES 4 ENVIRONMENTAL ASPECTS 4 FOREIGN ECONOMIC RELATIONS 4 FOREIGN RELATIONS 4 GAS INDUSTRY 4 INDUSTRIA DEL PETR�OLEO 4 VALUATION 4