Lumsden, Keith Macroeconomics a programmed book [by] Keith Lumsden, Richard Attiyeh an] George Leland Bach. - Englewood Cliffs, N.J. Prentice-Hall c1966. - ix, 179 p. illus. 24 cm. Subjects--Topical Terms: Macroeconomics--Programmed instruction. LC Class. No.: HB171.5 / .A84 1966 Dewey Class. No.: 339/.077