APA
Barrett G., National Bureau of Economic Research, Milligan Kevin & Levell Peter. (2013). A Comparison of micro and macro expenditure measures across countries using differing survey methods. Cambridge: NBER.
Chicago
Barrett Garry, National Bureau of Economic Research, Milligan Kevin and Levell Peter. 2013. A Comparison of micro and macro expenditure measures across countries using differing survey methods. Cambridge: NBER.
Harvard
Barrett G., National Bureau of Economic Research, Milligan Kevin and Levell Peter. (2013). A Comparison of micro and macro expenditure measures across countries using differing survey methods. Cambridge: NBER.
MLA
Barrett Garry, National Bureau of Economic Research, Milligan Kevin and Levell Peter. A Comparison of micro and macro expenditure measures across countries using differing survey methods. Cambridge: NBER. 2013.