Douglas, J. S. (1977). Hydroponics of Bengal system with notes on other methods of soilless cultivation (5.). Oxford University Press.
Citação norma ChicagoDouglas, J S. Hydroponics of Bengal System with Notes on Other Methods of Soilless Cultivation. 5. London: Oxford University Press, 1977.
Citação norma MLADouglas, J S. Hydroponics of Bengal System with Notes on Other Methods of Soilless Cultivation. 5. Oxford University Press, 1977.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.