00646cam a2200229 4500 363649740 TxAuBib 20101206120000.0 090714s2009||||||||||||||||||||||||eng|u 2008018330 9780805087598 hc : alk. paper 0805087591 hc : alk. paper DLC DLC TxAuBib Low, William. Machines at work / William Low. 1st ed. New York : Holt, 2009. p. cm. 20090714. Machinery Juvenile literature. Lift-the-flap books.