APA-referens (7:e uppl.)
Sitkin, A. (2011). Principles of ecology and management: International challenges for future practitioners. Goodfellow Pub..
Chicago-referens (17:e uppl.)
Sitkin, Alan. Principles of Ecology and Management: International Challenges for Future Practitioners. Woodeaton, Oxford: Goodfellow Pub., 2011.
MLA-referens (9:e uppl.)
Sitkin, Alan. Principles of Ecology and Management: International Challenges for Future Practitioners. Goodfellow Pub., 2011.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.