@mastersthesis {,
title = {Technologies prehispaniques de l{\textquoteright}obsidienne: Les centres de production de la r{\'e}gion de Zin{\'a}paro-Prieto},
volume = {Unpublishe},
year = {1991},
school = {Universit{\'e} de Paris I},
address = {Paris},
author = {Darras, V{\'e}ronique}
}