Hancock, James. <br/><br/>
The Herons handbook / 
James Hancock and James Kushlan. 
 - London :  Croom Helm,  1984. 
 - 288 p. :  ill. ;  23 cm. 
<br/><br/><label>ISBN: </label>0709937164 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Herons.<br/>Herons--Pictorial works.<br/>Birds--Pictorial works.