(1975). Statistical package for the social sciences (S.P.S.S.), Primer. McGraw-Hill.
Cita Chicago (17th ed.)Statistical Package for the Social Sciences (S.P.S.S.), Primer. New York: McGraw-Hill, 1975.
Cita MLA (9th ed.)Statistical Package for the Social Sciences (S.P.S.S.), Primer. McGraw-Hill, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.