@book{205081,
	author = {Pohl, Walter, and Wiley InterScience (Online service)},
	title = {Economic geology : principles and practice : metals, minerals, coal and hydrocarbons - introduction to formation and sustainable exploitation of mineral deposits /},
	publisher = {Wiley-Blackwell,},
	year = {2011.},
	address = {Chichester, West Sussex ;},
	url = {http://onlinelibrary.wiley.com/book/10.1002/9781444394870}
}