APA-viite (7. p.)
MacMullen, R. (2014). Why do we do what we do?: Motivation in history and the social sciences. De Gruyter Open.
Chicago-viite (17. p.)
MacMullen, Ramsay. Why Do We Do What We Do?: Motivation in History and the Social Sciences. Warsaw, [Poland] ; Berlin, [Germany]: De Gruyter Open, 2014.
MLA-viite (9. p.)
MacMullen, Ramsay. Why Do We Do What We Do?: Motivation in History and the Social Sciences. De Gruyter Open, 2014.
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