Jones, M. J., & Wild, A. (1975). Soils of the West African savanna: The maintenance and improvement of their fertility. Commonwealth Agricultural Bureaux.
Citace podle Chicago (17th ed.)Jones, M. J., a Alan Wild. Soils of the West African Savanna: The Maintenance and Improvement of Their Fertility. Farnham Royal, Eng.: Commonwealth Agricultural Bureaux, 1975.
Citace podle MLA (8th ed.)Jones, M. J., a Alan Wild. Soils of the West African Savanna: The Maintenance and Improvement of Their Fertility. Commonwealth Agricultural Bureaux, 1975.
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