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Geology and engineering | Bok | 62:55 Le Legget, Robert Ferguson / - New York : McGraw-Hill, 1939. - xviii, 650 s. - Språk: Engelsk | Legget, Robert Ferguson | 1939 |
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The physics of the divining rod : Being an account of an experimental investigation of water and mineral divining | Bok | 550.87 M Maby, J.Cecil / - London : G.Bell and Sons, 1939. - 452 s. - Språk: Engelsk | Maby, J.Cecil | 1939 |