1933-1934 Data Were Checked With Printers' Ink (Weekly). Beginning January 1948, The Data Include Advertising In Farm And Some Other Magazines Not Included Previously. The 1948 And Following Figures Are Not Strictly Comparable To Earlier Data. No Back Figures Are Available. Source: Survey Of Current Business, October 1933, P. 20, And Successive Issues And Bi-Annual Statistical Supplements.
This NBER data series m06057 appears on the NBER website in Chapter 6 at http://www.nber.org/databases/macrohistory/contents/chapter06.html.
NBER Indicator: m06057
Release: NBER Macrohistory Database
National Bureau of Economic Research, Magazine Advertising, Linage for United States [M06057USM575NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M06057USM575NNBR/, October 13, 2015.