Telecommunications

By Barron's and Colin Hynson

The invention of the telegraph in the first half of the nineteenth century marked the beginning of instant communication across long distances. This book chronicles the development of various... This description may be from another edition of this product.

• Format: Paperback
• Language: English
• ISBN: 0764110683
• ISBN13: 9780764110689
• Release Date: January 2000
• Publisher: Barron's Educational Series
• Length: 30 Pages
• Weight: 0.25 lbs.
• Dimensions: 0.2" x 6.7" x 9.5"
• Age Range: 10 to 14 years
• Grade Range: Grades 5 to 9