| Year | 1911 |
| Date | 13-Apr |
| Volume | 24 |
| Issue | 520 |
| Page | 339 |
| Category | Replies in Brief |
| Part | |
| Title | We recommend "Graver's "Modern Gas and Oil Engines", Allen's "Modern Power Gas Producer Practice and Applications", Wyer's "Producer Gas and Gas Producers |
| Author | E.W. |
| Notes |