@book{78506,
	author = {Walker, Francis Amasa.},
	title = {Political economy /},
	publisher = {Macmillan,},
	year = {1896.},
	series = {American science series. Advanced course},
	address = {London :},
	edition = {3d ed., rev. and enl.},
	url = {http://catalog.hathitrust.org/api/volumes/oclc/2170806.html}
}