@book{243866,
	author = {Levy, Joel},
	title = {100 analogías científicas},
	publisher = {Librero},
	year = {c2011.},
	address = {Madrid},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/enhancements/fy1301/2011292445-b.html}
}