United States. Department of Commerce. "Statement by Dr. Peter C. Manus, Acting Assistant Secretary of Commerce for Economic Affairs, on Gross National Product in the Fourth Quarter 1972, and for 1972 as a Whole,"
United States Department of Commerce News
(January 19, 1973).
https://fraser.stlouisfed.org/title/6148/item/597036, accessed on June 1, 2026.