@inbook{Hajnal1982,
author = {Hajnal, J.},
title= {Household formation patterns in historical perspective},
year = {1982},
editor = {Wall, R.},
editor = {Robin, J.},
editor = {Laslett, P.},
booktitle = {Family forms in historic Europe},
address = {Cambridge},
publisher = {Cambridge University Press},
pages = {65--104},
}