@book{4664,
	author = {Drewes, Fred.},
	title = {How to study science.},
	publisher = {McGraw-Hill,},
	year = {c2003.},
	address = {Boston :},
	edition = {4th ed. /},
	url = {http://www.loc.gov/catdir/description/mh031/2003269763.html}
}