Bennett, W. F. (1993). Nutrient deficiencies and toxicities in crop plants. APS.
Cita Chicago (17th ed.)Bennett, William F. Nutrient Deficiencies and Toxicities in Crop Plants. APS, 1993.
Cita MLA (9th ed.)Bennett, William F. Nutrient Deficiencies and Toxicities in Crop Plants. APS, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.