@book{78174,
	author = {Sharp, Ansel M. and Register, Charles A.},
	title = {Economics of social issues /},
	publisher = {McGraw-Hill/Irwin,},
	year = {2006.},
	address = {Boston :},
	edition = {17th ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0623/2005041786-d.html}
}