@book{43138,
	author = {Pirenne, Henri, and Clegg, Ivy E,},
	title = {Economic and social history of medieval Europe /},
	publisher = {K. Paul, Trench, Trubner,},
	year = {1936 [Impression 1961]},
	address = {London :},
	note = {"Translated from the French by I. E. Clegg."}
}