Hartsch, Kerstin The Nasca and Palpa geoglyphs: geophysical and geochemical data - Berlin Springer-Verlag October 2009 - pp. 1213-1220 ilus. Subjects--Topical Terms: FLUORESCENCIA DE RAYOS XGEOLOGIAGEOQUÍMICAINVESTIGACION GEOFISICAPETROGLIFOS Subjects--Geographic Terms: ICANASCAPALPAPERU