creedy, j., Evans, L., & Thomas, B. (1984). Economics: An integrated approach. Prentice-hall international.
Citazione stile Chigago Style (17a edizione)creedy, john, Lynne Evans, e Barry Thomas. Economics: An Integrated Approach. London: Prentice-hall international, 1984.
Citatione MLA (9a ed.)creedy, john, et al. Economics: An Integrated Approach. Prentice-hall international, 1984.