@inbook{U.S.Census Bureau2022,
author = {U.S.Census Bureau},
title= {American Community Survey and Puerto Rico Community Survey design and methodology (version 3.0): Chapter 4: Sample design and selection},
year = {2022},
URL = {https://www2.census.gov/programs-surveys/acs/methodology/design_and_methodology/2022/acs_design_methodology_ch04_2022.pdf},
address = {Washington, D.C},
publisher = {U.S. Department of Commerce},
}