Conference "Convention on wetlands of international importance especially as waterfowl habitat " Μontreux,Switzerland, & Ramsar convention bureau. (1992). Convention on wetlands of international importance especially as waterfowl habitat =: Convetion relative aux zones humides d' imrortance internationale particulierement comme habitats des oiseaux d' eau.: proceedings of the fourth meeting of the conference of the contracting parties , Montreux, Switzerland 27 june to 4 july: proces-verbaux de la quatrieme session de la ouatrieme session de la conference des parties contractantes , Montreux, Switzerland 27 juin au 4 juillet 1990. ramsar convention bureau review.
Παραπομπή σε μορφή Chicago (17η εκδ.)Conference "Convention on wetlands of international importance especially as waterfowl habitat " Μontreux,Switzerland, και Ramsar convention bureau. Convention on Wetlands of International Importance Especially as Waterfowl Habitat =: Convetion Relative Aux Zones Humides D' Imrortance Internationale Particulierement Comme Habitats Des Oiseaux D' Eau.: Proceedings of the Fourth Meeting of the Conference of the Contracting Parties , Montreux, Switzerland 27 June to 4 July: Proces-verbaux De La Quatrieme Session De La Ouatrieme Session De La Conference Des Parties Contractantes , Montreux, Switzerland 27 Juin Au 4 Juillet 1990. Switzerland: ramsar convention bureau review, 1992.
Παραπομπή σε μορφή MLA (8th εκδ.)Conference "Convention on wetlands of international importance especially as waterfowl habitat " Μontreux,Switzerland, και Ramsar convention bureau. Convention on Wetlands of International Importance Especially as Waterfowl Habitat =: Convetion Relative Aux Zones Humides D' Imrortance Internationale Particulierement Comme Habitats Des Oiseaux D' Eau.: Proceedings of the Fourth Meeting of the Conference of the Contracting Parties , Montreux, Switzerland 27 June to 4 July: Proces-verbaux De La Quatrieme Session De La Ouatrieme Session De La Conference Des Parties Contractantes , Montreux, Switzerland 27 Juin Au 4 Juillet 1990. ramsar convention bureau review, 1992.
