@book{127,
	author = {Pollock, Philip H., and Pollock, Philip H.,},
	title = {An IBM SPSS companion to political analysis /},
	publisher = {CQ Press, A DIVISION OF SAGE,},
	year = {[2019]},
	address = {Washington, D.C. :},
	edition = {Sixth Edition, Revised and updated edition.},
	note = {Companion text to: Essentials of political analysis / Philip H. Pollock.}
}