APA
Burns A F, National Bureau of Economic Research United States & National Bureau of Economic Research United States. (1948). Twenty eighth annual report. : .
Chicago
Burns A F, National Bureau of Economic Research United States and National Bureau of Economic Research United States. 1948. Twenty eighth annual report. : .
Harvard
Burns A F, National Bureau of Economic Research United States and National Bureau of Economic Research United States. (1948). Twenty eighth annual report. : .
MLA
Burns A F, National Bureau of Economic Research United States and National Bureau of Economic Research United States. Twenty eighth annual report. : . 1948.
