Nielsen, S. N., & Briann D. Fath and other. (2020). A New Ecology system perspective (second edition.). Elsevier.
Cytowanie według stylu Chicago (wyd. 17)Nielsen, Soren Nors, i Briann D. Fath and other. A New Ecology System Perspective. second edition. united Kingdom: Elsevier, 2020.
Cytowanie według stylu MLA (wyd. 9)Nielsen, Soren Nors, i Briann D. Fath and other. A New Ecology System Perspective. second edition. Elsevier, 2020.