creedy, j., Evans, L., & Thomas, B. (1984). Economics: An integrated approach. Prentice-hall international.
Chicago-referens (17:e uppl.)creedy, john, Lynne Evans, och Barry Thomas. Economics: An Integrated Approach. London: Prentice-hall international, 1984.
MLA-referens (9:e uppl.)creedy, john, et al. Economics: An Integrated Approach. Prentice-hall international, 1984.