@book{21433,
	author = {Johnson, George B.},
	title = {The living world /},
	publisher = {McGraw-Hill,},
	year = {2003.},
	address = {Boston :},
	edition = {3rd ed.},
	note = {includes bibliographical references and index.},
	url = {http://www.loc.gov/catdir/description/mh021/2001052186.html}
}