@book{247958,
	author = {Pearsall, Deborah Marie and Piperno, Dolores R.},
	title = {Current research in phytoloith analysis : applications in archaeology and paleoecology},
	publisher = {Museum Applied Science Center for Archaeology and Anthropology; University of Pennsylvania. Museum of Archaeology and Anthropology},
	year = {1993},
	address = {Philadelphia}
}