Norman, M. J. T. (1979). Annual cropping systems in the tropics: An introduction. University Presses of Florida.
Citace podle Chicago (17th ed.)Norman, M. J. T. Annual Cropping Systems in the Tropics: An Introduction. Gainesville: University Presses of Florida, 1979.
Citace podle MLA (8th ed.)Norman, M. J. T. Annual Cropping Systems in the Tropics: An Introduction. University Presses of Florida, 1979.
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