Griffiths, A., & Wall, S. (1999). Applied economics: An introductory course (8th ed.). Addison Wesley Longman.
Cita Chicago (17th ed.)Griffiths, Alan, i Stuart Wall. Applied Economics: An Introductory Course. 8th ed. New York: Addison Wesley Longman, 1999.
Cita MLA (9th ed.)Griffiths, Alan, i Stuart Wall. Applied Economics: An Introductory Course. 8th ed. Addison Wesley Longman, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.