European Commission, Schaffer, N., & Gallo - Orsi, U. (2001). European Union action plans for eight priority bird species: Bittern(Botaurus stellaris), Ferruginous Duck(Aythya nyroca), Steller's Eider(Polystica stelleri), Lammergeier(Gypaetus barbatus), Greater Spotted Eagle(Aquila Clanga), Lesser Spotted Eagle(Aquila pomarina), Bonelli's Eagle(Hieraaetus fasciatus), Little Bustard(Tetrax tetrax). Office for Official Publications of the European Communities.
Παραπομπή σε μορφή Chicago (17η εκδ.)European Commission, Norbert Schaffer, και Umberto Gallo - Orsi. European Union Action Plans for Eight Priority Bird Species: Bittern(Botaurus Stellaris), Ferruginous Duck(Aythya Nyroca), Steller's Eider(Polystica Stelleri), Lammergeier(Gypaetus Barbatus), Greater Spotted Eagle(Aquila Clanga), Lesser Spotted Eagle(Aquila Pomarina), Bonelli's Eagle(Hieraaetus Fasciatus), Little Bustard(Tetrax Tetrax). Luxembourg: Office for Official Publications of the European Communities, 2001.
Παραπομπή σε μορφή MLA (8th εκδ.)European Commission, et al. European Union Action Plans for Eight Priority Bird Species: Bittern(Botaurus Stellaris), Ferruginous Duck(Aythya Nyroca), Steller's Eider(Polystica Stelleri), Lammergeier(Gypaetus Barbatus), Greater Spotted Eagle(Aquila Clanga), Lesser Spotted Eagle(Aquila Pomarina), Bonelli's Eagle(Hieraaetus Fasciatus), Little Bustard(Tetrax Tetrax). Office for Official Publications of the European Communities, 2001.
