@inbook {,
	title = {A Review of Twentieth-Century Mesoamerican Obsidian Studies},
	booktitle = {Mesoamerican Lithic Technology: Experimentation and Interpretation},
	year = {2003},
	pages = {15-54},
	publisher = {University of Utah Press},
	organization = {University of Utah Press},
	address = {Salt Lake City},
	author = {Clark, John E.},
	editor = {Hirth, Kenneth G.}
}