Practical Coal Production Mine Transportation and Market Preparation: Mine Transportation, Hoisting and Hoisting Equipment, Coal Preparation

• Book ID: 109487130
• Publisher: Nature Publishing Group
• Year: 1927
• Tongue: English
• Weight: 121 KB
• Volume: 120
• Category: Article
• ISSN: 0028-0836
• DOI: 10.1038/120150a0