Summary Description of X-9 and X-10 Versions of the Census Method II Seasonal Adjustment Program
United States. Bureau of the Census. "Summary Description of X-9 and X-10 Versions of the Census Method II Seasonal Adjustment Program," in United States. Bureau of the Census. "June 1963," Business Conditions Digest (June 1963) : 72-72. https://fraser.stlouisfed.org/title/43/item/7192/toc/425275 , accessed on April 25, 2024.