APA-referens (7:e uppl.)
Biller, P. (2000). The measure of multitude: Population in medieval thought. Oxford University Press.
Chicago-referens (17:e uppl.)
Biller, Peter. The Measure of Multitude: Population in Medieval Thought. Oxford ; New York: Oxford University Press, 2000.
MLA-referens (9:e uppl.)
Biller, Peter. The Measure of Multitude: Population in Medieval Thought. Oxford University Press, 2000.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.