@book{16715,
	author = {Rossi, Peter H. and Freeman, Howard E.},
	title = {Evaluation :},
	publisher = {Sage Publications,},
	year = {c1993.},
	address = {Newbury Park, Calif. :},
	edition = {5th ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0655/92037082-t.html}
}