Sargent, T. J., & Velde, F. R. (2001). The big problem of small change. Princeton University Press.

Sargent, Thomas J., and François R. Velde. The Big Problem of Small Change. Princeton, New Jersey ; Oxfordshire, England: Princeton University Press, 2001.

Sargent, Thomas J., and François R. Velde. The Big Problem of Small Change. Princeton University Press, 2001.