"Libre-échange et protectionnisme Protectionnisme Discours parlementaires." . . "Free trade and protection Protection Speeches in Congress." . . "Tarif douanier États-Unis Discours parlementaires." . . "Protectionnisme Discours parlementaires." . . "Tariff United States Speeches in Congress." . . . . . . . . . "Speech of Henry Clay, in defence of the American system, against the British colonial system : with an appendix of documents referred to in the speech"@en . . . "Speeches" . "Speeches"@en . . . "Speech of Henry Clay, in defence of the American system, against the British colonial system with an appendix of documents referred to in the speech"@en . . "Speech of Henry Clay, in defence of the American system, against the British colonial system with an appendix of documents referred to in the speech" . . . . . . . . . . . . .