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El mercado de avena, cebada y centena
Arrieta, José Luis de, (1969)
Tables exhibiting the prices of wheat, from the year 1100 to 1830 : also, the prices of beans, barley, and oats, from 1790 to 1830
Badcock, Benjamin, (1832)
Food and feed grains : wheat, rice, maize, barley, and other cereals
Mackie, Arthur B., (1968)