@book{803,
	author = {Raven, Peter H. and Johnson, George B.},
	title = {Biology /},
	publisher = {McGraw-Hill,},
	year = {c2002.},
	address = {Boston :},
	edition = {6th ed.},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/toc/mh031/2001030052.html}
}