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Design and construction of small earth dams | Bok | 627.8 N Nelson, K. D. / - Melbourne : Inkata, 1991. - 116 s. - Språk: Engelsk | Nelson, K. D. | 1991 |
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Dictionary of water and water engineering | Bok | 626(038) Nelson, A. / - London : Butterworths, cop. 1973. - vi, 271 s. - Språk: Engelsk | Nelson, A. | cop. 1973 |