Answer book fast facts about our world (Washington, D.C National Geographic, 2009)
Keywords: Civilization -- Handbooks, manuals, etc; Economics -- Handbooks, manuals, etc; Geography -- Handbooks, manuals, etc; Political science -- Handbooks, manuals, etc; Science -- Handbooks, manuals, etc; Technology -- Handbooks, manuals, etc; World history -- Handbooks, manuals, etc