Gregory J. Downey
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Telegraph Messenger Boys: Labor, Technology, and Geography, 1850-1950
Telegraph Messenger Boys: Labor, Communication and Technology, 1850-1950
Telegraph Messenger Boys: Labor, Communication and Technology, 1850-1950
Technology and Communication in American History (SHOT Historical Perspectives on Technology)
Closed Captioning: Subtitling, Stenography, and the Digital Convergence of Text with Television (Johns Hopkins Studies in the History of Technology)
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