Cita APA (7a ed.)

Sholto Douglas, J. (1970). Hydroponics: The Bengal system (4th ed.). Oxford University Press.

Cita Chicago Style (17a ed.)

Sholto Douglas, James. Hydroponics: The Bengal System. 4th ed. London: Oxford University Press, 1970.

Cita MLA (9a ed.)

Sholto Douglas, James. Hydroponics: The Bengal System. 4th ed. Oxford University Press, 1970.