Formato EBOOK (Kindle):
https://www.amazon.it/Spirito-lettera-nellarte-arcaica-Documenti-ebook/dp/B0785RG7L1/ref=tmm_kin_swatch_0?_encoding=UTF8&qid=1513506278&sr=1-1
Formato PDF:
https://www.ibs.it/spirito-lettera-figure-alate-nell-ebook-august-julius-langbehn/e/9786050411119?inventoryId=75465749
Cartaceo (stampa ON DEMAND):
https://www.amazon.it/Spirito-lettera-Figure-nellarte-arcaica/dp/1973488809/ref=sr_1_1?s=books&ie=UTF8&qid=1513506077&sr=1-1&keywords=langbehn+spirito+e+lettera
