@inbook {,
	title = {Factors influencing the Use of Stone Projectile Tips},
	booktitle = {Projectile technology},
	year = {1997},
	note = {edited by Heidi Knecht.ill. ; 24 cm.},
	pages = {37-74},
	publisher = {Plenum Press},
	organization = {Plenum Press},
	address = {New York},
	keywords = {Prehistoric., Projectile points Analysis., Projectile points Classification., Stone implements., Tools},
	isbn = {0306457164},
	author = {Ellis, Christopher J.},
	editor = {Knecht, Heidi}
}