Bennett, W. F. (1993). Nutrient deficiencies and toxicities in crop plants. APS.
Tohutoru Kātū Chicago (17th ed.)Bennett, William F. Nutrient Deficiencies and Toxicities in Crop Plants. APS, 1993.
Tohutoro MLA (9th ed.)Bennett, William F. Nutrient Deficiencies and Toxicities in Crop Plants. APS, 1993.
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