Dyfyniad APA

Abbott, L. K. (2003). Soil biological fertility: A key to sustainable land use in agriculture. Boston: Kluwer Academic Publishers.

Dyfyniad Arddull Chicago

Abbott, Lynette K. Soil Biological Fertility: A Key to Sustainable Land Use in Agriculture. Boston: Kluwer Academic Publishers, 2003.

Dyfyniad MLA

Abbott, Lynette K. Soil Biological Fertility: A Key to Sustainable Land Use in Agriculture. Boston: Kluwer Academic Publishers, 2003.

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