@book{122443,
	author = {Lange, Oskar and Lange, Oskar},
	title = {Sobre la teoría económica del socialismo},
	publisher = {Ediciones Aries},
	year = {1970.},
	series = {Bibliography : p. 151-153},
	address = {Barcelona},
	note = {Translation of : On the economic theory of socialism.}
}