@book{7,
	author = {Anderson, Sharon,},
	title = {Statistical methods for comparative studies :},
	publisher = {Wiley,},
	year = {c1980.},
	series = {Wiley series in probability and mathematical statistics},
	address = {New York :},
	url = {http://www.loc.gov/catdir/description/wiley032/79027220.html}
}