APA
Clougherty J. A., National Bureau of Economic Research & Grajek M. (2012). International Standards and international trade. Cambridge: NBER.
Chicago
Clougherty Joseph A, National Bureau of Economic Research and Grajek Michal. 2012. International Standards and international trade. Cambridge: NBER.
Harvard
Clougherty J. A., National Bureau of Economic Research and Grajek M. (2012). International Standards and international trade. Cambridge: NBER.
MLA
Clougherty Joseph A, National Bureau of Economic Research and Grajek Michal. International Standards and international trade. Cambridge: NBER. 2012.