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Messengers, Morse Code, and Modems

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Age 9+
Grade PK-3

Janice Parker

Messengers, Morse Code, and Modems

Library Binding (Heinemann/Raintree Jan. 1, 2000)
Discusses the development of various means of communication, from the printed word through telegraph and telephone to radio, television, and computers, examining the technology that has made communicating easier.
Series
Science Work
ISBN
0739801384 / 9780739801383
Pages
48
Weight
12.8 oz.
Dimensions
8.5 x 0.5 in.

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