Martín, Dean F. <br/><br/>
A convenient method of anlysis of humic acid in fresh water 

<br/><br/> Sobretiro de: Environmental Letters 1(1): 49-52, 1971 
<br/><br/><label>LCCN: </label>31297 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Acido humico.<br/>Agua--Análisis.