California Fertilizer Association. Soil Improvement Committee. (1990). Western fertilizer handbook. Interstate Publishers.
Citace podle Chicago (17th ed.)California Fertilizer Association. Soil Improvement Committee. Western Fertilizer Handbook. Danville: Interstate Publishers, 1990.
Citace podle MLA (9th ed.)California Fertilizer Association. Soil Improvement Committee. Western Fertilizer Handbook. Interstate Publishers, 1990.
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