@inbook{Gould1991,
author = {Gould, P.},
title= {Dynamic structures of geographic space},
year = {1991},
editor = {Brunn, S.D.},
editor = {Leinbach, T.R.},
booktitle = {Collapsing space and time: Geographic aspects of communication and information},
address = {London},
publisher = {Harper Collins},
pages = {10‒15},
}