Tunnels are round and other questions about building /
Parker, Steve.
Tunnels are round and other questions about building / Steve Parker. - Danbury, Connecticut : Grolier, 2003 - 32 pages : color illustrations ; 29 cm. - I wonder why series. .
Includes index.
0 753405229
Buildings.
Earthmoving machinery --
Earthmoving machinery.
Structural engineering --
Structural engineering.--Juvenile literature.--Juvenile literature.
0 30 / P243i 1995
Tunnels are round and other questions about building / Steve Parker. - Danbury, Connecticut : Grolier, 2003 - 32 pages : color illustrations ; 29 cm. - I wonder why series. .
Includes index.
0 753405229
Buildings.
Earthmoving machinery --
Earthmoving machinery.
Structural engineering --
Structural engineering.--Juvenile literature.--Juvenile literature.
0 30 / P243i 1995