Thực đơn
Miền Cổ BắcThực đơn
Miền Cổ BắcLiên quan
Tài liệu tham khảo
WikiPedia: Miền Cổ Bắc http://www.avionary.info/ http://www.panda.org/about_wwf/where_we_work/ecore... http://www.canadianbiodiversity.mcgill.ca/ http://www.bbc.co.uk/nature/ecozones/Palearctic_ec... http://www.economicexpert.com/a/Tigris.htm https://commons.wikimedia.org/wiki/Category:Palear... https://web.archive.org/web/20060614215124/http://... https://web.archive.org/web/20150923233335/http://... https://web.archive.org/web/20171024203826/http://...