Owen, Myrfyn <br/><br/>
Waterfowl ecology / 
Myrfyn Owen and Jeffrey M.Blach 
 - Glasgow :  Blackie,  1990 
 - 194 p. :  ill. ;  20 cm. 
 - Tertiary level biology .
<br/><br/>Bibliography: p.175-190 
<br/><br/><label>LCCN: </label>89-15903 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Anatidae Ecology