The citation combines sources from David Herlihy article «Medieval Demography» in the Dictionary of the Middle Ages (see Bibliography this article), and from Josiah C. Russell, «Population in Europe» [Архівовано 29 жовтня 2014 у Wayback Machine.], in Carlo M. Cipolla, ed., The Fontana Economic History of Europe, Vol. I: The Middle Ages, (Glasgow: Collins/Fontana, 1972), 25–71
The citation combines sources from David Herlihy article «Medieval Demography» in the Dictionary of the Middle Ages (see Bibliography this article), and from Josiah C. Russell, «Population in Europe» [Архівовано 29 жовтня 2014 у Wayback Machine.], in Carlo M. Cipolla, ed., The Fontana Economic History of Europe, Vol. I: The Middle Ages, (Glasgow: Collins/Fontana, 1972), 25–71
