Gregory, Paul R. Macroeconomics / Paul R. Gregory, Roy J. Ruffin. - xxiv, 373 pages : illustrations ; 27 cm. Includes index. ISBN: 0673990435 9780673990433 Subjects--Topical Terms: Macroeconomics. LC Class. No.: HB172.5 / .G774 1994 Dewey Class. No.: 339