@article{Massey1993,
author = {Massey, Douglas S. and Arango, Joaquin and Hugo, Graeme and Kouaouci, Ali and Pellegrino, Adela and Taylor, J. Edward},
title= {Theories of International Migration: A Review and Appraisal},
year = {1993},
doi = {10.2307/2938462},
journal = {Population and Development Review},
volume = {19},
number = {3},
pages = {431--466},
}