International Congress of Ecology (1st : The Hague : 1974), International Association for Ecology, & International Union of Biological Sciences. Division of Environmental Biology. (1974). Structure, functioning and management of ecosystems: Proceedings of the first International Congress of Ecology, The Hague, The Netherlands, September 8-14, 1974. Pudoc.
Παραπομπή σε μορφή Chicago (17η εκδ.)International Congress of Ecology (1st : The Hague : 1974), International Association for Ecology, και International Union of Biological Sciences. Division of Environmental Biology. Structure, Functioning and Management of Ecosystems: Proceedings of the First International Congress of Ecology, The Hague, The Netherlands, September 8-14, 1974. Wageningen: Pudoc, 1974.
Παραπομπή σε μορφή MLA (9th εκδ.)International Congress of Ecology (1st : The Hague : 1974), et al. Structure, Functioning and Management of Ecosystems: Proceedings of the First International Congress of Ecology, The Hague, The Netherlands, September 8-14, 1974. Pudoc, 1974.