@book{45844,
	author = {Aigner, Dennis J.},
	title = {Basic econometrics /},
	publisher = {Prentice-Hall,},
	year = {c1971.},
	series = {Prentice-Hall series in mathematical economics},
	address = {Englewood Cliffs, N.J. :},
	note = {Includes index.}
}