Walker, C. H. <br/><br/>
Orgnic chlorine insecticide residues in goodsanders and redbreasted mergansers 

<br/><br/> Sobretiro de: Wildfowl Trust Annual Report 16, 1965. pp. 56-57 
<br/><br/><label>LCCN: </label>51092 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Insecticidas--Residuos.