@book{18521, author = {Fratkin, Elliot. and Roth, Eric Abella. and SpringerLink (Online service)}, title = {As Pastoralists Settle}, publisher = {Kluwer Academic / Plenum Publishers, New York,}, year = {2005.}, address = {Boston, MA :}, url = {http://dx.doi.org/10.1007/b107561} }