@inbook {,
title = {Trends in Early Non-local Obsidian Artifacts from the Rio Ilave Viewed from Surface Survey and Late Archaic Excavations},
booktitle = {Advances in Titicaca Basin Archaeology-2},
publisher = {Cotsen Institute of Archaeology at UCLA},
organization = {Cotsen Institute of Archaeology at UCLA},
address = {Los Angeles, Calif.},
author = {Craig, Nathan M. and Aldenderfer, Mark},
editor = {Stanish, Charles and Klarich, Elizabeth A.}
}