| Author: | Turck, J. A. V. |
| Subject: | QA, Calculators |
| Format: | Electronic text |
| Date issued: | 2022 |
| Language: | English |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | Origin of modern calculating machines [electronic resource] / J. A. V. Turck |