@inbook{Haskey1993,
author = {Haskey, J.},
title= {Formation and Dissolution of Unions in Different Countries of Europe},
year = {1993},
editor = {Blum, A.},
editor = {Rallu, J.L.},
booktitle = {European Population. Vol. 2 Demographic Dynamics},
address = {London},
publisher = {John Libbey},
pages = {211--229},
}