Author/Editor     Petkov, Nikolai; Hughes, Baz; Gallo-Orsi, Umberto
Title     Ferruginous duck
Type     monografija
Place     Sofia
Publisher     BirdLife InternationalBSPBTWSG
Publication year     2003
Volume     str. 144 str.
ISBN     954-90211-7-3
Language     eng
Descriptors     Ducks
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