@book{205260,
	author = {Buol, S. W.},
	title = {Soil genesis and classification /},
	publisher = {Wiley-Blackwell,},
	year = {2011.},
	address = {Chichester, West Sussex ;},
	edition = {6th ed.},
	url = {http://onlinelibrary.wiley.com/book/10.1002/9780470960622}
}