@article{Firebaugh1984,
author = {Firebaugh, G.},
title= {Urbanization of the nonfarm population: A research note on the convergence of rich and poor nations.},
year = {1984},
doi = {10.2307/2578711},
journal = {Social Forces},
volume = {62},
number = {3},
pages = {775--783},
}