Sapling Learning ©2013 | ISBN-13: 9781464132995
Tyler Cowen; Alex Tabarrok ©2012 | Second Edition ISBN-13: 9781429289504
Sapling Learning ©2013 | ISBN-13: 9781464133008
Paul Krugman; Robin Wells ©2012 | Third Edition ISBN-13: 9781429283434
Tyler Cowen; Alex Tabarrok ©2012 | Second Edition ISBN-13: 9781429239981
Susan Feigenbaum; R.W. Hafer ©2012 | First Edition ISBN-13: 9781429220200
Paul Krugman; Robin Wells; Margaret Ray; David A. Anderson ©2012 | Second Edition ISBN-13: 9781429290814
Paul Krugman; Robin Wells; Margaret Ray; David A. Anderson ©2012 | Second Edition ISBN-13: 9781429287296
Gerald Stone ©2012 | Second Edition ISBN-13: 9781429263689
Tyler Cowen; Alex Tabarrok ©2010 | First Edition ISBN-13: 9781429202497
Paul Krugman; Robin Wells ©2010 | Second Edition ISBN-13: 9780716771616
Paul Krugman; Robin Wells; Anthony Myatt ©2006 | Canadian Edition ISBN-13: 9780716772637