00409nam a2200145Ia 4500008004100000020001500041082001800056100002600074245003400100260003000134300000800164650004100172650003400213653001600247170901s1976    xx            000 0 und d  a0720708303  a631.585bD66A  aDouglas, James Sholto 0aAdvanced Guide to Hydroponics  aLondonbPelham Bookc1976  a333  aAgriculture and related technologies  aTechnology (Applied sciences)  aHydroponics