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Construction materials and machinery in Colombia
Ewing, W. W., (1918)
Policies to enhance social development through the promotion of SME and social entrepreneurship : a study in the Colombian construction industry
Garrigós Simón, Fernando J., (2017)
Infraestructura y desarrollo : reto de la construcción
Gaviria Trujillo, César, (1994)
Construction materials and machinery in Argentina and Bolivia
Ewing, W. W., (1920)
Construction materials and machinery in Brazil
Construction materials and machinery in Chile, Peru, and Ecuador
Ewing, W. W., (1919)