@mastersthesis {,
	title = {The Evolution of Prehistoric Exchange Systems in California: Results of tracing and dating techniques},
	volume = {Ph.D.},
	year = {1977},
	school = {University of California, Los Angeles},
	type = {Unpublished Ph.D. Dissertation},
	address = {Los Angeles},
	author = {Ericson, Jonathon E.}
}