APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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