@book{5425,
	author = {Hall, Anthony E. and Cannell, Glen H. and SpringerLink (Online service)},
	title = {Agriculture in Semi-Arid Environments},
	publisher = {Springer Berlin Heidelberg,},
	year = {1979.},
	series = {Ecological Studies, Analysis and Synthesis,},
	address = {Berlin, Heidelberg :},
	url = {http://www.columbia.edu/cgi-bin/cul/resolve?clio11299696}
}