APA
Ashenfelter O. C., Schaller Bruce, Doran Kirk B & National Bureau Of Economic Research. (2010). A shred of credible evidence on the long run elasticity of l. Cambridge: NBER.
Chicago
Ashenfelter Orley C, Schaller Bruce, Doran Kirk B and National Bureau Of Economic Research. 2010. A shred of credible evidence on the long run elasticity of l. Cambridge: NBER.
Harvard
Ashenfelter O. C., Schaller Bruce, Doran Kirk B and National Bureau Of Economic Research. (2010). A shred of credible evidence on the long run elasticity of l. Cambridge: NBER.
MLA
Ashenfelter Orley C, Schaller Bruce, Doran Kirk B and National Bureau Of Economic Research. A shred of credible evidence on the long run elasticity of l. Cambridge: NBER. 2010.
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