Worlds in the making : the evolution of the universe / Svante Arrhenius
Proceedings of the first congress of the International Society of Rock Mechanics
Quelques applications de la géophysique à la recherche des eaux souterraines / Mariano Fernández Bollo
O efeito geofísico do vento nos assoreamentos fluviais e marítimo / José de Espregueira Mendes