Wadebridge Ecological Centre. (1979). The ecologist. Ecosystems Ltd. ; Distributed in North America by the MIT Press.
Čikaški stil citiranja (17. izdanje)Wadebridge Ecological Centre. The Ecologist. Wadebridge, Cornwall, UK : Cambridge, MA: Ecosystems Ltd. ; Distributed in North America by the MIT Press, 1979.
MLA način citiranja (9. izdanje)Wadebridge Ecological Centre. The Ecologist. Ecosystems Ltd. ; Distributed in North America by the MIT Press, 1979.
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