APA (7th ed.) Zitazioa

(1975). Statistical package for the social sciences (S.P.S.S.). McGraw Hill.

Chicago Style (17th ed.) Zitazioa

Statistical Package for the Social Sciences (S.P.S.S.). New York: McGraw Hill, 1975.

MLA (9th ed.) Zitazioa

Statistical Package for the Social Sciences (S.P.S.S.). McGraw Hill, 1975.