@book{70086,
	author = {Clarkson, Kenneth W. and Stone, Courtenay C.,},
	title = {Microeconomics in action / },
	publisher = {Prentice-Hall, },
	year = {1971.},
	address = {Englewood Cliffs, N.J. : },
	note = {"A workbook ... designed to supplement any of the basic textbooks now in use."}
}