AveniAnthonySilvermanHelaine1991“Between the lines: Reading the Nazca markings as rituals writ large”, The sciences, xxxi, 36–42.
2.
DearbornDavidSchreiberKatharina1989“House of the Rising Sun”, Time and calendars in the Inca Empire, ed. by ZiolkowskiM.SadowskiR. (BAR International Series 479, Oxford). 49–74.
3.
ReinhardJohan1988The Nazca lines: A new perspective on their origin and meaning, 4th edn (Lima, Peru).
4.
SilvermanHelaine1990“Beyond the pampa: The geoglyphs in the valleys of Nazca”, National geographic research, vi/4, 435–56.