Subjects: Coal mines and mining--United StatesTECHNOLOGY & ENGINEERING / Mining
تفاصيل العنوان
Subjects: Nation-building--Case studies; Nation-building; DemocratizationPOLITICAL SCIENCE / International Relations / General; POLITICAL SCIENCE / Public Policy / Regional Planning
Subjects: Mining engineeringTECHNOLOGY & ENGINEERING / Mining; SCIENCE / Earth Sciences / Geology; SCIENCE / Earth Sciences / Mineralogy
