Clayton, G. E. (1995). A guide to everyday economic statistics. Irwin McGraw-Hill.
Cita Chicago (17th ed.)Clayton, Gary E. A Guide to Everyday Economic Statistics. Boston, Mass: Irwin McGraw-Hill, 1995.
Cita MLA (9th ed.)Clayton, Gary E. A Guide to Everyday Economic Statistics. Irwin McGraw-Hill, 1995.
Atenció: Aquestes cites poden no estar 100% correctes.