Morris, C. C., & Simon, T. P. (2012). Nutrient Indicator Models for Determining Biologically Relevant Levels: A case study based on the Corn Belt and Northern Great Plain Nutrient Ecoregion. Springer Netherlands : Imprint: Springer.
Παραπομπή σε μορφή Chicago (17η εκδ.)Morris, Charles Clarence, και Thomas Paul Simon. Nutrient Indicator Models for Determining Biologically Relevant Levels: A Case Study Based on the Corn Belt and Northern Great Plain Nutrient Ecoregion. Dordrecht: Springer Netherlands : Imprint: Springer, 2012.
Παραπομπή σε μορφή MLA (8th εκδ.)Morris, Charles Clarence, και Thomas Paul Simon. Nutrient Indicator Models for Determining Biologically Relevant Levels: A Case Study Based on the Corn Belt and Northern Great Plain Nutrient Ecoregion. Springer Netherlands : Imprint: Springer, 2012.
