Hammack, Judd <br/><br/>
Waterfowl and wetlands :  toward bioeconomic analysis / 
Judd Hammack & Gardmer Mallard Brown 
 - London :  Resources for the Future (RFF) ,  1974 
 - 95p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>0801816254 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water resources<br/>Wetlands<br/>Economic aspects<br/>Waterfowl shooting
<br/><br/><label>Dewey Class. No.: </label>333.91  / HAM 2