@misc{Flood2017,
author = {Flood, S. and King, M. and Ruggles, S. and Warren, J.R.},
title= {Integrated public use microdata series: Current population survey: Version 5.0},
year = {2017},
URL = {https://www.ipums.org/doi/D030.V5.0.shtml},
publisher = {University of Minnesota},
address = {Minneapolis},
}