@book{37650,
	author = {Hawksworth, David L. and Bull, Alan T. and SpringerLink (Online service)},
	title = {Plant Conservation and Biodiversity},
	publisher = {Springer Netherlands,},
	year = {2007.},
	address = {Dordrecht :},
	url = {http://dx.doi.org/10.1007/978-1-4020-6444-9}
}