Παραπομπή σε μορφή APA (7η εκδ.)
European Union. Commission. Directorate General XI for the Environment, Nuclear Safety and Civil Protection. Unit XI.D2 "Nature Protection, Coastal Zones and Tourism", Ecosystems LTD, & European Union. Office for Official Publications. (1998). Life Nature 98: Projects. European Union. Office for Official Publications.
Παραπομπή σε μορφή Chicago (17η εκδ.)
European Union. Commission. Directorate General XI for the Environment, Nuclear Safety and Civil Protection. Unit XI.D2 "Nature Protection, Coastal Zones and Tourism", Ecosystems LTD, και European Union. Office for Official Publications. Life Nature 98: Projects. European Union. Office for Official Publications, 1998.
Παραπομπή σε μορφή MLA (9th εκδ.)
European Union. Commission. Directorate General XI for the Environment, Nuclear Safety and Civil Protection. Unit XI.D2 "Nature Protection, Coastal Zones and Tourism", et al. Life Nature 98: Projects. European Union. Office for Official Publications, 1998.
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