cam a22 u 4500 128698276 CHVBK 20200921065617.0 880212s1978 ii | 00 |eng|d (OCoLC)637185390 (NEBIS)000254883 ETH-BIB ger ETH-BIB ETHICS-ISBD Drainage construction techniques for vertical/tubewell drainage chairman: Gordon P.Hawkins; prep.: Committee on irrigation and drainage construction techniques - International Commission on irrigation and drainage New Delhi 1978 VII, 46 p. 29 cm fig.; tab. ENTWÄSSERUNG (LANDWIRTSCHAFTLICHER WASSERBAU) ger (ETHUDK)000030157 ethudk FILTERSTOLLEN + FILTERBRUNNEN + UFERFILTRATION (WASSERAUFBEREITUNG) ger (ETHUDK)000030238 ethudk u ENTWÄSSERUNG (LANDWIRTSCHAFTLICHER WASSERBAU) ger 626.86 nebis E1 u FILTERSTOLLEN + FILTERBRUNNEN + UFERFILTRATION (WASSERAUFBEREITUNG) ger 628.16.067.11 nebis E1 u DRAINAGE (AGRICULTURAL HYDRAULICS) eng 626.86 nebis E1 u DRAINAGE (HYDRAULIQUE AGRICOLE) fre 626.86 nebis E1 u GALERIES DE FILTRAGE + PUITS DE FILTRAGE + FILTRAGE PAR LES BERGES (TRAITEMENT DE L'EAU) fre 628.16.067.11 nebis E1 u FILTER TUNNELS + FILTER WELLS + BANK FILTRATION (WATER TREATMENT) eng 628.16.067.11 nebis E1 Hawkins G.P. Committee on Irrigation and Drainage Construction Techniques International Commission on Irrigation and Drainage (DE-588)1087561884 BK020000 XK020000 XK020000 020 E01 NEBIS E16 E16 RH 2 CONV 2819 NEBIS 700 1- Hawkins G.P. NEBIS 710 2- Committee on Irrigation and Drainage Construction Techniques International Commission on Irrigation and Drainage (DE-588)1087561884