Centro Vasco de Arquitectura
Euskal Herriko Arkitektura Ikerkundea
http://www.amazon.es/Sagrada-Familia-seg%C3%BAn-Gaud%C3%AD-Comprender/dp/B00HX27PSS/ref=sr_1_2/278-9093509-1808029?s=books&ie=UTF8&qid=1400859527&sr=1-2&keywords=la+sagrada+familia+segun+gaudi