Hauser, G.F. <br/><br/>
Soil fertility investigations on farmers' fields 
/by G.F. Hauser 
 - Rome  FAO  1970 
 - 77 pages. 
 - FAO Soils bulletin no.11 .
<br/><br/> Include Appendix <br/> 
<br/><br/><label>Dewey Class. No.: </label>631.42  / HAU