révolution verte (1) Development (1) Agriculture (1) Stock companies (1) Seeds (1) Saving and investment (1) Progress (1) Hoarding of money (1) Green Revolution (1) Corporations (1) Change (1) Brown (1) Structure (1) Seeds (1) Progreso (1) Ahorro (1) Agricultura (1) Agriculture (1) Structure (1) Progrès (1) Structure (1) Sociétés (1) Épargne (1) Agriculture (1) forces productives (1) agriculture (1) progrès (1) République démocratique allemande (1949-1990) (1)