@book{20849,
	author = {Poulson, Barry Warren},
	title = {Value added in manufacturing, mining, and agriculture in the American economy from 1809 to 1839},
	publisher = {Arno Press},
	year = {1975.},
	series = {Dissertations in American economic history},
	address = {New York},
	note = {Originally presented as the author's thesis, Ohio State University, 1965.}
}