Parker, Steve
Tunnels are round and other questions about building / Steve Parker - 32 pages : color illustrations ; 29 cm - I wonder why series . - I wonder why series. .
Includes index
Illustrations and text provide the answers to thirty-three unusual questions about buildings, tunnels, bridges, and machinery.
Primary
9781856975803 0753405229
Buildings
Earthmoving machinery
Structural engineering
Children's questions and answers
690
Tunnels are round and other questions about building / Steve Parker - 32 pages : color illustrations ; 29 cm - I wonder why series . - I wonder why series. .
Includes index
Illustrations and text provide the answers to thirty-three unusual questions about buildings, tunnels, bridges, and machinery.
Primary
9781856975803 0753405229
Buildings
Earthmoving machinery
Structural engineering
Children's questions and answers
690