@inbook {,
	title = {Biface Production and Craft Specialization: A view from Sierra de las Nevajas, Hidalgo},
	booktitle = {Mesoamerican Lithic Technology: experimentation and interpretation},
	year = {2003},
	pages = {197-207},
	publisher = {University of Utah Press},
	organization = {University of Utah Press},
	address = {Salt Lake City},
	keywords = {pachuca},
	author = {Pastrana, Alejandro and Hirth, Kenneth G.},
	editor = {Hirth, Kenneth G.}
}