@book{10926,
	author = {Coelli, Tim.},
	title = {An introduction to efficiency and productivity analysis /},
	publisher = {Springer,},
	year = {2005.},
	address = {New York :},
	edition = {2nd ed.},
	note = {Rev. ed. of: An introduction to efficiency and productivity analysis / by Tim Coelli. c1998.},
	url = {http://www.loc.gov/catdir/enhancements/fy0663/2005042642-d.html}
}