@book{126741,
	author = {Clark, Henry B.},
	title = {Altering behavior :},
	publisher = {Sage,},
	year = {c1987.},
	address = {Newbury Park, Calif. :},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/enhancements/fy0654/86003710-d.html}
}