"JUVENILE NONFICTION / General" . . . . "¡Pégale! : historia de las herramientas" . . . . "Juvenile works" . "Electronic books" . . . . . . . "A description of the concept and history of tool use by humans, from chop-sticks for eating, to weaponry, agricultural implements and both basic and advanced construction tools." . "Tools Juvenile literature." . . "Tools." . . . .