"Dump trucks"@en . "Dump trucks" . . . . . . . "Pictorial works"@en . . . . . . . "Juvenile works"@en . "A basic introduction to the features and functions of dump trucks, examining the forms they have taken from the early 1900s to today." . . "Juvenile works" . . . . "Introduces dump trucks, including their history, the different types of dump trucks, and the many purposes they serve on a construction site."@en . "Dump trucks Pictorial works Juvenile literature." . . "Dump trucks." . . . . "Earthmoving machinery." . .