Allison, F. E. (1973). Soil organic matter and its role in crop production. Elsevier Scientific Pub.
Chicago-referens (17:e uppl.)Allison, Franklin Elmer. Soil Organic Matter and Its Role in Crop Production. Amsterdam: Elsevier Scientific Pub, 1973.
MLA-referens (9:e uppl.)Allison, Franklin Elmer. Soil Organic Matter and Its Role in Crop Production. Elsevier Scientific Pub, 1973.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.