Cita APA

Robinson, J. B. D. (1975). The soil nitrogen index and its calibration with crop performance to improve fertilizer efficiency on arable soils. Commonwealth Agricultural Bureaux.

Citación estilo Chicago

Robinson, J. B. D. The Soil Nitrogen Index and Its Calibration With Crop Performance to Improve Fertilizer Efficiency On Arable Soils. Farnham Royal, Eng: Commonwealth Agricultural Bureaux, 1975.

Cita MLA

Robinson, J. B. D. The Soil Nitrogen Index and Its Calibration With Crop Performance to Improve Fertilizer Efficiency On Arable Soils. Farnham Royal, Eng: Commonwealth Agricultural Bureaux, 1975.