Bridges and tunnels
By: by F. E. Dean. Illustrated by Laszlo Acs.
Contributors: Acs, Laszlo, illus.
Series: Finding out about science
Publisher: Golden Press
Published: 1968
Place of publication: New York
Language: eng
Number of pages: 48
Subjects: Bridges -- Juvenile literature.; Tunnels -- Juvenile literature.; Bridges.; Tunnels.
Description: Relates the principles of bridge building, particularily the suspension and cantilever methods, and describes the equipment used in drilling tunnels.