@book{21647,
	author = {Crosby, Alfred W},
	title = {Ecological imperialism :},
	publisher = {Cambridge University Press,},
	year = {2004.},
	address = {Cambridge ;},
	edition = {2nd ed., new ed.},
	url = {http://www.loc.gov/catdir/toc/cam041/2004040401.html}
}