Source: Bls, Mimeographed Release (Undated), "Consumer Price Index For Urban Wage Earners And Clerical Workers. U.S. City Average: Nondurable Commodities Less Food, Series L-1, " 1935-1966; Current Data In Monthly "Consumer Price Index." Also In"Economic Indicators" (C.E.A.)
This NBER data series m04185 appears on the NBER website in Chapter 4 at http://www.nber.org/databases/macrohistory/contents/chapter04.html.
NBER Indicator: m04185
Release: NBER Macrohistory Database
National Bureau of Economic Research, Consumer Price Index, Nondurable Commodities Less Food for United States [M04185USM350NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M04185USM350NNBR/, June 3, 2015.