@book{7919,
	author = {Roos, Anna Marie Eleanor. and ebrary, Inc.},
	title = {The salt of the earth},
	publisher = {Brill,},
	year = {2007.},
	series = {History of science and medicine library,},
	address = {Leiden ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10270790}
}