@article{Williamson1988,
author = {Williamson, J.},
title= {Migrant selectivity, urbanization, and industrial revolutions},
year = {1988},
doi = {10.2307/1973573},
URL = {https://doi.org/doi:10.2307/1973573},
volume = {14},
number = {2},
pages = {287‒314},
}