@book{1421,
	author = {Gujarati, Damodar N.},
	title = {Essentials of econometrics /},
	publisher = {McGraw-Hill/Irwin,},
	year = {c2006.},
	address = {Boston, [MA] :},
	edition = {3rd ed.},
	note = {Includes bibliographical references and index.}
}