APA
Cooper R., Willis Jonathan & National Bureau Of Economic Research. (2003). The cost of labor adjustment: Inferences from the GAP. Cambridge, MA: NBER.
Chicago
Cooper Russell, Willis Jonathan and National Bureau Of Economic Research. 2003. The cost of labor adjustment: Inferences from the GAP. Cambridge, MA: NBER.
Harvard
Cooper R., Willis Jonathan and National Bureau Of Economic Research. (2003). The cost of labor adjustment: Inferences from the GAP. Cambridge, MA: NBER.
MLA
Cooper Russell, Willis Jonathan and National Bureau Of Economic Research. The cost of labor adjustment: Inferences from the GAP. Cambridge, MA: NBER. 2003.