@book{4010,
	author = {Kendall, M G (Ed.) and Scientific Control System Ltd. (London)},
	title = {Mathematical model building in economics and industry},
	publisher = {Griffin},
	year = {1970},
	address = {London},
	note = {Being the collected paper of a conference organized by Scientific Control System Ltd and held in London in June 1968 and June 1969 and montreal in October 1969}
}