Those Mean Nasty Dirty Downright Disgusting but . . . Invisible Germs will help your children get a strong start on good health habits. Children will be delighted by the imaginative, full-color illustrations of the germs that cause disease and thrilled how they can wash them away. Esos desagradables detestables sucios completamente asquerosos pero . . . invisibles g rmenes ayudara a sus hijos para aprender y desarrollar buenos...