Mohamad, S.A. <br/><br/>
Characterization of humic substances from town refuse and refuse-sewage sludge composts. 

 - Seibersdorf :  Forschungszentrum Seibersdorf,  1993. 
 - 227 p. 
<br/><br/><label>ISSN: </label>0253-5270 
<br/><br/><label>Standard No.: </label>OEFZS-4692