Caterpillar, contribuye al desarrollo del Plan Nacional de Carreteras

Short documentary about the construction of the national road #4 between Madrid and La Coruña, started in January of 1962 and finished in December of 1964.Short documentary about the construction of the national road #4 between Madrid and La Coruña, started in January of 1962 and finished in December of 1964.Short documentary about the construction of the national road #4 between Madrid and La Coruña, started in January of 1962 and finished in December of 1964.