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Geografia agricola de Bolivia
Berrios, Góver Barja, (1971)
Det svenska jordbrukets inrikes avsättningsförhållanden
Wohlin, Nils, (1914)
Atlas on marketing aspects of commercial crops
(1959)
Multivariate analysis
Kendall, Maurice G., (1975)
The analysis of economic time-series : P.1: Prices
Kendall, Maurice George, (1964)
Model building and its problems
Kendall, Maurice George, (1968)