@book{168,
	author = {Bowerman, Bruce L.; O`Connell, Richard T.; Oris, J.B.; Murphree, Emily S.},
	title = {Essentials of business statistics.},
	publisher = {McGraw-Hill Irwin,},
	year = {2010.},
	address = {Boston, MA :},
	edition = {3rd},
	note = {Includes index}
}