@book{5057,
	author = {Zeuthen, F.},
	title = {Problems of monopoly and economic warfare /},
	publisher = {Routledge and K. Paul,},
	year = {c1930, [i.e. 1967]},
	address = {London :},
	note = {First published 1930 by George Routledge & Sons Ltd.}
}