Nielsen, S. N., & Briann D. Fath and other. (2020). A New Ecology system perspective (second edition.). Elsevier.
Čikaški stil citiranja (17. izdanje)Nielsen, Soren Nors, i Briann D. Fath and other. A New Ecology System Perspective. second edition. united Kingdom: Elsevier, 2020.
MLA način citiranja (9. izdanje)Nielsen, Soren Nors, i Briann D. Fath and other. A New Ecology System Perspective. second edition. Elsevier, 2020.