@book{127240,
	author = {Stevenson, Leslie Forster.},
	title = {Seven theories of human nature /},
	publisher = {Oxford University Press,},
	year = {1987.},
	address = {New York :},
	edition = {2nd ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0639/87017170-d.html}
}