@techreport{Das Gupta1993,
author = {Das Gupta, P.},
title= {Standardization and decomposition of rates: A user’s manual},
year = {1993},
URL = {https://www.census.gov/content/dam/Census/library/publications/1993/demo/p23-186.pdf},
publisher = {US Bureau of the Census},
address = {Washington, D.C.},
number = {Current Population Reports, Special Studies P23–186},
}