Hancock, James. <br/><br/>
The herons handbook / 
by James Hancock and James Kushlan. 
 - New York :  Harper & Row,  1984. 
 - 288 p. :  ill. ;  25 cm. 
<br/><br/>Bibliography : p. 280-285 
<br/><br/><label>ISBN: </label>0060153318 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ardeidae.<br/>Herons.