United States. Bureau of Labor Statistics. "March 1990," CPI Detailed Report (March 1990). https://fraser.stlouisfed.org/title/58/item/19390, accessed on June 15, 2024.
United States. Bureau of Labor Statistics. "March 1990," CPI Detailed Report (March 1990). https://fraser.stlouisfed.org/title/58/item/19390, accessed on June 15, 2024.