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Minifundia in agrarian reform: a colombian example.
(University of WisconsinMadison (Estados Unidos), 1967)
Water regulation and land use, a colombian example.
(University of WisconsinMadison (Estados Unidos), 1967)
Title problems in rural areas of Colombia, a colonization example.
(University of WisconsinMadison (Estados Unidos), 1965)