@article{Massey1993,
author = {Massey, D.S. and Arango, J. and Hugo, G.J. and Kouaouci, A. and Pellegrino, A. and Taylor, J.E. },
title= {Theories of international migration: A review and appraisal},
year = {1993},
journal = {Population and Development Review },
volume = {19},
number = {3},
pages = {431--466},
}