@book{8432,
	author = {C-E-I-R, ltd.},
	title = {Mathematical model building in economics and industry: being the collected papers of a conference organized by C-E-I-R Ltd. and held in London on 4th to 6th July 1967 /},
	publisher = {Griffin,},
	year = {1968 [Reprinted 1969].},
	series = {First Series},
	address = {London :}
}