Douglas,Sholto J. (1975). Hydroponics: The Bengal system with notes on other methods of soilless cultivation. Oxford university press.
Styl cytowania ChicagoDouglas,Sholto J. Hydroponics: The Bengal System with Notes on Other Methods of Soilless Cultivation. Bombay: Oxford university press, 1975.
Styl cytowania MLADouglas,Sholto J. Hydroponics: The Bengal System with Notes on Other Methods of Soilless Cultivation. Oxford university press, 1975.
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