Madge, Steve. <br/><br/>
Waterfowl :  an identification guide to the ducks, geese, and swans of the world / 
Steve Madge and Hilary Burn. 
 - Boston :  Houghton Mifflin,  c1988. 
 - 298 p. :  ill. (some col.) ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. 292-294. 
<br/><br/><label>ISBN: </label>0395467276 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Waterfowl--Identification.<br/>Birds--Identification.
<br/><br/><label>LC Class. No.: </label>QL696.A52  / M33 1988 
<br/><br/><label>Dewey Class. No.: </label>598.4/1