@article{Bean1983,
author = {Bean, F.D. and King, A.G. and Passel, J.S.},
title= {The number of illegal migrants of Mexican origin in the United States: Sex ratio-based estimates for 1980},
year = {1983},
doi = {10.2307/2060904},
volume = {20},
number = {1},
pages = {99--109},
}