BibTex format
@inbook{Rivers:2013,
author = {Rivers, R and Knappett, C and Evans, T},
booktitle = {Network Analysis in Archaeology: New Approaches to Regional Interaction},
editor = {Knappett},
pages = {125--150},
publisher = {OUP},
title = {What makes a site important? Centrality, gateways and gravity},
url = {http://ukcatalogue.oup.com/product/9780199697090.do},
year = {2013}
}