The tunnel builders /

Explains the many techniques used at various stages of building tunnels under streets and rivers or through mountains.

Bibliographic Details
Main Author:	Kelly, James E.
Other Authors:	Park, William R., Lake, Herbert E.
Format:	Book
Language:	English
Published:	Reading, Mass. : Addison-Wesley, [1976]
Subjects:	Tunnels > Juvenile literature. Tunneling > Juvenile literature. Tunnels. Tunneling.

Description
Summary:	Explains the many techniques used at various stages of building tunnels under streets and rivers or through mountains.
Item Description:	"An Addisonian Press book."
Physical Description:	48 unnumbered pages : illustrations (some color) ; 24 cm.
ISBN:	0201037211 (lib. bdg.)