00597cam a2200205 4500 55689712 TxAuBib 19990618120000.0 990618s1971||||||||||||||||||||||||und|u 9780664325008 0664325009 TxAuBib Hilton, Suzanne. It's smart to use a dummy. Westminster Press, [1971] 19990618. Models and modelmaking Juvenile literature. Models and modelmaking. Simulation methods Juvenile literature.