Vịt_bạc_Appleyard
Vịt_bạc_Appleyard
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Vịt bầu Vịt bầu cánh trắng Vịt Bạch Tuyết Vịt Bắc Kinh Vịt bãi nhỏ Vịt bầu Minh Hương Vịt bãi lớn Vịt biển mào Vịt bạc Appleyard Vịt búi lôngTài liệu tham khảo
WikiPedia: Vịt_bạc_Appleyard ftp://ftp.fao.org/docrep/fao/010/a1250e/a1250e.pdf ftp://ftp.fao.org/docrep/fao/010/a1250e/annexes/Li... http://dad.fao.org/cgi-bin/EfabisWeb.cgi?sid=f74fb... http://livestockconservancy.org/index.php/heritage... http://www.poultryclub.org/breed-gallery/ducks/ http://www.rbst.org.uk/Rare-and-Native-Breeds/Poul... http://www.waterfowl.org.uk/hvducks.html https://books.google.com/books?id=nAfyUHY42u0C https://books.google.it/books?id=asIoCAAAQBAJ&pg=P... https://web.archive.org/web/20130616062803/http://...