@book{16867,
	author = {Datta, Lois-ellin,},
	title = {Evaluation in change :},
	publisher = {Sage Publications,},
	year = {c1981.},
	address = {Beverly Hills, Calif. :},
	note = {"Published in cooperation with the Evaluation Research Society."},
	url = {http://www.loc.gov/catdir/enhancements/fy0660/81016649-d.html}
}