United States. Bureau of Economic Analysis. "Capital Spending Up 4.3 Percent in the First Quarter of 1972; 10.3 Percent Advance Expected for the Year, BEA 72-39,"
Bureau of Economic Analysis (BEA) News Releases
(June 2, 1972).
https://fraser.stlouisfed.org/title/6148/item/595335, accessed on March 22, 2025.
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