@book{252,
	author = {Case, Karl E. and Fair, Ray C.},
	title = {Principles of macroeconomics /},
	publisher = {Pearson Prentice Hall,},
	year = {c2004.},
	address = {Upper Saddle River, NJ :},
	edition = {7th ed.},
	note = {Various multi-media instructional tools are available to supplement the text.}
}