@book{205593,
	author = {McNeill, John Robert.},
	title = {A companion to global environmental history /},
	publisher = {Wiley,},
	year = {2012.},
	series = {Wiley-Blackwell companions to history},
	address = {Chichester, West Sussex ;},
	url = {http://onlinelibrary.wiley.com/book/10.1002/9781118279519}
}