- Listenly
- Public Library
- United States. Army. Signal Corps
- Visual Signaling
Chapters
Details
Language
en
Duration
~2 hours (154K characters)
Publisher of text edition
Project Gutenberg
Credits
Produced by Chris Curnow, Emmy and the Online Distributed Proofreading Team at http://www.pgdp.net (This file was produced from images generously made available by The Internet Archive)
Release date
2013-08-20
Rights
Public domain in the USA.
About the author
US