- Listenly
- Public Library
- Project Gutenberg
- Levi L. (Levi Leonard) Conant
- The Number Concept: Its Origin and Development
The Number Concept: Its Origin and Development
by Levi L. (Levi Leonard) Conant
Language
en
Duration
~5 hours (322K characters)
Credits
Produced by Jonathan Ingram, Hagen von Eitzen and the Online Distributed Proofreading Team at https://www.pgdp.net
Publisher
Project Gutenberg
Rights
Public domain in the USA.