Southville International School and Colleges
Parker, Steve

I wonder why tunnels are round : and other questions about building / by Steve Parker. - London : Kingfisher, 1993 - 32 pages : color illustrations ; 29cm. - I wonder why. .

753405229


Earthmoving machinery --
Structural engineering --
Structural engineering.--Juvenile literature.--Juvenile literature.

624.1 / P238 1993
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