Columbia subject headings:
Anatidae--Bibliography.
Water birds--Alaska--Bibliography.
Waterfowl--Alaska--Bibliography.
Harvard subject headings:
Anatidae--Alaska--Bibliography.
Anatidae--Bibliography.
Birds--Alaska--Bibliography.
Water birds--Alaska--Bibliography.
Waterfowl--Alaska--Bibliography.
Princeton subject headings:
Anatidae--Bibliography.
Birds--Alaska--Bibliography.
Water birds--Alaska--Bibliography.
Waterfowl--Alaska--Bibliography.