HAUSER , G .F . <br/><br/>
SOIL FERTILITY INVESTIGATIONS ON FARMER'S FIELDS 
G . F . HAUSER . 
 - ROME  FAO  1977 
 - vi , 78p.:ill.;  Hbk 
<br/><br/><label>ISBN: </label>9251003831 
<br/><br/><label>LC Class. No.: </label>S641 .H3 1977