@book{43729,
	author = {Gras, Norman Scott Brien,},
	title = {The early English customs system :},
	publisher = {Harvard University Press; [etc., etc.]},
	year = {1918},
	address = {Cambridge,},
	note = {"Most of this book is given up to the documents of the customs which are for the most part published in full and in the original language, Latin, French, or English, with introductory comments."--Pref.}
}