"Construction equipment--Children's non-fiction" . . "Excavateurs Ouvrages pour la jeunesse." . . . . "Excavating machinery Juvenile literature." . . "Excavating machinery." . . "Juvenile works" . . . . . . . . . . . . "Diggers" . . "Photographs and text provide information about diggers, explaining what they are, looking at different types of diggers, and discussing how they are used." . . "Earthmoving machinery--Children's non-fiction" . .