@book{ Solr-19556, title = {Lurrak ba al du etorkizunik? / [testugilea] Jose Ramon Aizpurua}, series = {Zientzia eta Natura (Gaiak)}, author = {Aizpurua, Jose Ramon}, address = {Donostia}, publisher = {: Gaiak}, year = {1993}, note = {1993/07/05}, }