APA-referens (7:e uppl.)

Firth, K. R. (1971). The apocalyptic tradition in early Protestant historiography in England and Scotland, 1530 to 1655. University of Oxford.

Chicago-referens (17:e uppl.)

Firth, Katharine R. The Apocalyptic Tradition in Early Protestant Historiography in England and Scotland, 1530 to 1655. England: University of Oxford, 1971.

MLA-referens (8:e uppl.)

Firth, Katharine R. The Apocalyptic Tradition in Early Protestant Historiography in England and Scotland, 1530 to 1655. University of Oxford, 1971.