APA
Hummels D., Skiba Alexandre & National Bureau Of Economic Research. (2002). Shipping the good apples out?: An empirical confirmation of the Alchian-Allen conjecture. Cambridge, MA: NBER.
Chicago
Hummels David, Skiba Alexandre and National Bureau Of Economic Research. 2002. Shipping the good apples out?: An empirical confirmation of the Alchian-Allen conjecture. Cambridge, MA: NBER.
Harvard
Hummels D., Skiba Alexandre and National Bureau Of Economic Research. (2002). Shipping the good apples out?: An empirical confirmation of the Alchian-Allen conjecture. Cambridge, MA: NBER.
MLA
Hummels David, Skiba Alexandre and National Bureau Of Economic Research. Shipping the good apples out?: An empirical confirmation of the Alchian-Allen conjecture. Cambridge, MA: NBER. 2002.