Series Is Presented Here As Two Variables--(1)--Seasonally Adjusted Data, 1939-1948 (2)--Original Data, 1948-1969. Source: Department Of Commerce, Office Of Business Economics, Unpublished Table (No. 17311) For 1939-1945 Data; Survey Of Current Business, December, 1953 And Subsequent Monthly Issues For 1946-1948 Data.
This NBER data series m06094a appears on the NBER website in Chapter 6 at http://www.nber.org/databases/macrohistory/contents/chapter06.html.
NBER Indicator: m06094a
Release: NBER Macrohistory Database
National Bureau of Economic Research, Wholesale Sales, Total Trade for United States [M0694AUSM144SNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M0694AUSM144SNBR/, November 26, 2015.