@book{29002,
	author = {Borger, Robert, and Cioffi, Frank,},
	title = {Explanation in the behavioural sciences /},
	publisher = {University Press,},
	year = {1970.},
	address = {Cambridge :},
	url = {http://www.loc.gov/catdir/enhancements/fy0909/71105497-d.html}
}