Cita APA (7a ed.)

Gilchrist, S., & Williams, J. C. (1998). Putty-clay and investment: A business cycle analysis. National Bureau of Economic Research.

Cita Chicago Style (17a ed.)

Gilchrist, Simon, y John Carroll Williams. Putty-clay and Investment: A Business Cycle Analysis. Cambridge, MA: National Bureau of Economic Research, 1998.

Cita MLA (9a ed.)

Gilchrist, Simon, y John Carroll Williams. Putty-clay and Investment: A Business Cycle Analysis. National Bureau of Economic Research, 1998.