APA-viite (7. p.)

Nielsen, S. N., & Briann D. Fath and other. (2020). A New Ecology system perspective (second edition.). Elsevier.

Chicago-viite (17. p.)

Nielsen, Soren Nors, ja Briann D. Fath and other. A New Ecology System Perspective. second edition. united Kingdom: Elsevier, 2020.

MLA-viite (9. p.)

Nielsen, Soren Nors, ja Briann D. Fath and other. A New Ecology System Perspective. second edition. Elsevier, 2020.