Underground

Description:

Text and drawings describe the subways, sewers, building foundations, telephone and power systems, columns, cables, pipes, tunnels, and other underground elements of a large modern city.

subjects: City and town life,  Underground construction,  Underground utility lines,  Vie urbaine,  Construction souterraine,  Réseaux souterrains,  Juvenile literature,  City and town life, juvenile literature,  Engineering, juvenile literature,  Cities and towns,  Engineering,  Public utilities