Perennou, Christian <br/><br/>
Asian waterfowl census 1991 :  mid-winter waterfowl counts, January 1991 / 
compiled by Christian Perennou and Taej Mundkur 
 - Slimbridge :  International Waterfowl and Wetlands Research Bureau /  1991 
 - 84 p. ;  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Waterfowl--Census