@book{26367,
	author = {Gregoire, Timothy G. and Valentine, Harry T.},
	title = {Sampling strategies for natural resources and the environment},
	publisher = {Chapman & Hall/CRC},
	year = {c2008},
	address = {Boca Raton},
	url = {http://www.loc.gov/catdir/toc/ecip0716/2007017628.html}
}