1. Annuario Estadistico de Cuba. Havana, (various dates).
2. Construction and Development: a Framework for Research and Action;Andrews,1972
3. The Placing and Management of Contracts for Building and Civil-Engineering Works;Banwell,1964
4. The USSR Construction Industry;Berliner,1955
5. Technological Choice in Construction in Two Asian Countries: China and India;Bhalla;World Development,1974