APA
Estevao M., Lach S., . (1999). The evolution of the demand for temporary help supply employment in the United States. Cambridge, Mass: National Bureau of Economic Research.
Chicago
Estevao Marcello, Lach Saul, . 1999. The evolution of the demand for temporary help supply employment in the United States. Cambridge, Mass: National Bureau of Economic Research.
Harvard
Estevao M., Lach S., . (1999). The evolution of the demand for temporary help supply employment in the United States. Cambridge, Mass: National Bureau of Economic Research.
MLA
Estevao Marcello, Lach Saul, . The evolution of the demand for temporary help supply employment in the United States. Cambridge, Mass: National Bureau of Economic Research. 1999.