APA-referens (7:e uppl.)

Hacking, I. (2004). Historical ontology (1a. ed.). Harvard University Press.

Chicago-referens (17:e uppl.)

Hacking, Ian. Historical Ontology. 1a. ed. Cambridge: Harvard University Press, 2004.

MLA-referens (9:e uppl.)

Hacking, Ian. Historical Ontology. 1a. ed. Harvard University Press, 2004.