25.
Septième Congrès International des Grands Barrages
26.
Estudio Comparativo de las Possibilidades de Produccion de Energia Hidroelectrica... de España / Juan Sans, dir. Cardus
Autor:
Cardus, Juan Sans
27.
Sixth World Power Conference / Conference World Power
28.
Sixth World Power Conference / Conference World Power
29.
Sixth World Power Conference / Conference World Power
30.
Sixth World Power Conference / Conference World Power
31.
Sixth World Power Conference / Conference World Power
32.
Sixth World Power Conference / Conference World Power
33.
Sixth World Power Conference / Conference World Power
34.
Sixth World Power Conference / Conference World Power
35.
Sixth World Power Conference / Conference World Power
36.
Sixth World Power Conference / Conference World Power
