@inbook{Laslett1972,
author = {Laslett, P.},
title= {Mean household size in England since the sixteenth century},
year = {1972},
editor = {Laslett, P.},
editor = {Wall, R.},
booktitle = {Household and Family in past time},
address = {London},
publisher = {Cambridge University Press},
pages = {125--158},
}