APA
Attanasio O., National Bureau of Economic Research & Augsburg B. (2014). Holy cows or cash cows?. Cambridge: NBER.
Chicago
Attanasio Orazio, National Bureau of Economic Research and Augsburg Britta. 2014. Holy cows or cash cows?. Cambridge: NBER.
Harvard
Attanasio O., National Bureau of Economic Research and Augsburg B. (2014). Holy cows or cash cows?. Cambridge: NBER.
MLA
Attanasio Orazio, National Bureau of Economic Research and Augsburg Britta. Holy cows or cash cows?. Cambridge: NBER. 2014.