Inventors - United States.

Inventing the future : = how science and technology transform our world / by: (Language materials, printed)

Steamboats come true = American inventors in action / by: (Electronic resources)

Listen up! : = Alexander Graham Bell's talking machine / by: (Language materials, printed)

Steamboats- History.

Steam-navigation- History.

Bell, Alexander Graham,

Telephone- History.

Telecommunication- Technological innovations.- United States

Inventors- United States

Electronics- Technological innovations.- United States

Telephone- History

Inventors- United States.