| Lehfeldt, Robert Alfred, n. 1868 |
| Electro-chemistry / by R.A. Lehfeldt |
| London : Longmans, Green, 1913. |
| Lehfeldt, Robert Alfred, n. 1868 |
| Electro-chemistry |
| London [etc.] : Longmans, Green and Co., 1904- |
| Hoff, Jacobus Henricus van't, 1852-1911 |
| Lectures on theoretical and physical chemistry [Microform] / by J.H. van't Hoff ; translated by R.A. Lehfeldt |
| London : E. Arnold, [1899-1900] (Oxford : H. Hart) |