@book{12909,
	author = {LeClerg, Warren H. Leonard, Andrew G. Clark Erwin L.},
	title = {Field plot technique /},
	publisher = {Burgess Publishing Company, Minneapolis, Minnesota,},
	year = {1962.},
	address = {[S.l.] :},
	url = {http://www.amazon.com/exec/obidos/ASIN/B000KBMTE4/chopaconline-20}
}