Zweers, G. A.

Mechanics of feeding of the mallard (Anas platyrhynchos L., Aves, Anseriformes) : the lingual apparatus and the suction-pressure pump mechanism of strining / G. A. Zweers, A. F. C.Gerritsen and P.J.Van Kranenburg-Voogd. - Basel : S. Karger, 1977. - 109 p. : ill. ; 23 cm. - Contributions to vertebrate evolution ; v.3 .

Bibliography : p.(104)-107.

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Mallard.
Birds--Feeding and feeds.
Birds--Anatomy.
Ducks.