APA-ийн эшлэл(7 дахь хэвлэлт)

MacMullen, R. (2014). Why do we do what we do?: Motivation in history and the social sciences. De Gruyter Open.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

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 -ийн эшлэл (9 дэх хэвлэлт)

MacMullen, Ramsay. Why Do We Do What We Do?: Motivation in History and the Social Sciences. De Gruyter Open, 2014.