Nuevas cartografías de la energía | Para una nueva ética energética
On camelback: René Chudeau (1864–1921), Conrad Kilian (1898–1950), Albert Félix de Lapparent (1905–1975) and Théodore Monod (1902–2000), four French geological travellers cross the Sahara | Geological Society, London, Special Publications
Kilian Conrad - Au Hoggar, mission de 1922 - Livre Rare Book