@book{42023,
	author = {Tabachnick, Barbara G., and Fidell, Linda S.,},
	title = {Using multivariate statistics /},
	publisher = {Pearson,},
	year = {[2019]},
	address = {NY, NY :},
	edition = {Seventh edition.},
	note = {Chapter 14, by Jodie B. Ullman.}
}