@book{13067,
	author = {Foth, Henry D. and Turk, Lloyd M.},
	title = {Fundamentals of soil science /},
	publisher = {John Wiley & Sons Inc,},
	year = {1978.},
	address = {[S.l.] :},
	edition = {6th ed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/0471267929/chopaconline-20}
}