by Rowe, Julian.

[ 01. English Non Fiction ] Authors: Perham, Molly. Series: First science Published by : Children's Press, (Chicago :) Physical details: 31 p. : col. ill. ; 26 cm. Subject(s): Structural engineering --Juvenile literature. | Structural engineering --Experiments. | Experiments. Year : 1994 Item type : 01. English Non Fiction