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. Commission. (1997). Life Nature 97: Projects. European Union. Commission.
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. Commission. Life Nature 97: Projects. European Union. Commission, 1997.
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 97: Projects. European Union. Commission, 1997.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.