Cita APA (7th ed.)

Norman, M. J. T. (1979). Annual cropping systems in the tropics: An introduction. University Presses of Florida.

Cita Chicago (17th ed.)

Norman, M. J. T. Annual Cropping Systems in the Tropics: An Introduction. Gainesville: University Presses of Florida, 1979.

Cita MLA (8th ed.)

Norman, M. J. T. Annual Cropping Systems in the Tropics: An Introduction. University Presses of Florida, 1979.