The great frontier freedom and hierarchy in modern times - McNeill, William Hardy 1917-2016 (Princeton Univ. Press, 1983)
Keywords: Classes sociales; Histoire sociale; Marché du travail; Vie des pionniers - États-Unis; Égalité (Sociologie); Émigration et immigration - Histoire; Geschichte; Migration; Sozialgeschichte; Social history; Frontier and pioneer life -- United States; Emigration and immigration -- History; Social classes; Labor supply; Equality; Kolonialismus; United States - Civilization; USA; Frontier