Cómo la hacen de Pemex la nueva guerra del petróleo

Petróleos Mexicanos -- Caricatures and cartoons; Petroleum industry and trade -- Mexico -- Caricatures and cartoons; Neoliberalism -- Mexico -- Caricatures and cartoons; Mexican wit and humor, Pictorial; Mexico -- Politics and government -- Caricatures and cartoons; Mexico -- Economic policy -- Caricatures and cartoons