Tractor: References & Edit History
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Article History
| Type | Description | Contributor | Date |
|---|---|---|---|
| Article title updated for style. | Nov 05, 2026 | ||
| Invalidated site: International Research Journal of Engineering and Technology - Layout and Packaging of Electric Tractor (PDF). | Aug 04, 2026 | ||
| Add new Web site: IOPscience - IOP Conference Series: Materials Science and Engineering - Comparative Study of Electric Tractor and Diesel Tractor (PDF). | Dec 23, 2025 | ||
| Add new Web site: International Research Journal of Engineering and Technology - Layout and Packaging of Electric Tractor (PDF). | Sep 05, 2025 | ||
| Add new Web site: Michigan State University - College of Agriculture and Natural Resources - Improving Tractor Performance and Fuel Efficiency (PDF). | Jun 30, 2025 | ||
| Add new Web site: Scientific Reports - On field assessment of tractor performance and emission fueled by blends of ethanol and waste cooking oil methyl ester. | Jul 05, 2024 | ||
| Add new Web site: Economic History Association - Economic History of Tractors in the United States. | Nov 23, 2023 | ||
| Add new Web site: PennState Extension - Tractor Stability and Instability. | Jun 13, 2023 | ||
| Add new Web site: National Museum of American History - These Tractors Show 150 Years of Farming History. | Dec 22, 2022 | ||
| Added information on tractor attachments and their uses. | Oct 12, 2021 | ||
| Removed media. | Jul 30, 2021 | ||
| Added video. | Feb 06, 2015 | ||
| Added photograph. | Aug 19, 2009 | ||
| Media added. | Oct 11, 2007 | ||
| Article revised and updated. | Jun 15, 2006 | ||
| Article added to new online database. | Jul 20, 1998 |
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