APA
Gilchrist S., Williams John C & National Bureau Of Economic Research. (1998). Putty-clay and investment: A business cycle analysis. Cambridge, MA: NBER.
Chicago
Gilchrist Simon, Williams John C and National Bureau Of Economic Research. 1998. Putty-clay and investment: A business cycle analysis. Cambridge, MA: NBER.
Harvard
Gilchrist S., Williams John C and National Bureau Of Economic Research. (1998). Putty-clay and investment: A business cycle analysis. Cambridge, MA: NBER.
MLA
Gilchrist Simon, Williams John C and National Bureau Of Economic Research. Putty-clay and investment: A business cycle analysis. Cambridge, MA: NBER. 1998.